Glass bottle with attached phallic shaped measuring device. Attached label to the bottle states that this was used by a physiotherapist and provides a reference for the bottle: RNIB 9448. The Royal National Institute for the Blind did sell materials around the world, and this item could have been ordered from them. royal victorian institute for the blind, equipment

8648.1 - Rusty measuring device.

8649.1 - Rusted measuring device.

8650.1 - Rusty measuring device.

8651.1 - Rusty measuring device.

8652.1 - Slightly rusty chain measuring device.- JG

This set of scales would have been used to check the acuracy of Weights and Measures.Where it was used is unknown, but it may have always been part of the Shire.The maker was J.D.Potter,Poultry,London Middlesex,U.K. One of several sets of scales of various sizes in collection of Learmonth And District Historical Society Inc.To measure precise weights,the instruments used were a set of precise balanced scales. Set on a wooden box,( which would have contained the weights).It is made of brass and has a brass beam balance,steel pointer with index and twin pans. Date 25/1/1865.Various hallmarks similar to "jewellers".tools, and, scales, weights, measures, potter london, measuring devices

Steelyard - Measuring device for weighing carcasses. Horizontal metal bar with one large hook on top and three below. Large ball at other end of rod.trades, butchering

Holden van with two MTS police sitting on the tailgate in full uniform, including hats, coats, breeches, boots and recording instruments, presumably for speed. Circa 1967. Operating an Amphometer speed measuring device. St.Georges Rd North Fitzroypolice vehicles; motor transport branch; motor transport section; holden courtesy van

This set of baby scales is believed to have been used in a Baby Health Centre in Warrnambool. The first Baby Health Centre in Warrnambool was opened in Liebig Street in October 1921. It was initially run by Sister Riley. The development of Baby Health Centres in Victoria was largely due to the work of Dr Isabella Younger-Ross (1887-1956). She was born in Warrnambool to Henrietta and John Younger (the Younger department store operated in Liebig Street Warrnambool for over 60 years). Isabella Younger Ross studied medicine in Melbourne and Glasgow and she was a prominent worker in the field of maternal and infant welfare for over 40 years. These scales are retained as an example of the type of equipment used in baby health centres in the early to mid 20th century. It will be useful for display.This is a metal set of scales with a rectangular base tapering at one end. At the top is attached a metal receptacle for holding a baby and underneath this on top of the base is the scale mechanism with a metal measuring device. The item is painted yellow and green but the paint is well rusted and peeling in places. 15 lb.warrnambool baby health centres, dr isabella younger-ross

The sphygmomanometer is an early diagnostic instrument used to measure blood pressure. Since the discovery of blood circulation in 1628, the search for accurate, convenient, simple, and non-invasive tools has led to evolving measuring devices and cuffs. Until the twentieth century, few doctors tolerated the inconvenience of blood pressure measurers and relegated the exiting tools to laboratory research. The mercury and later aneroid sphygmomanometers provided the accuracy and portability required for clinical use.The sphygmomanometer is an early diagnostic instrument used to measure blood pressure. Since the discovery of blood circulation in 1628, the search for accurate, convenient, simple, and non-invasive tools has led to evolving measuring devices and cuffs. Until the twentieth century, few doctors tolerated the inconvenience of blood pressure measurers and relegated the exiting tools to laboratory research. The mercury and later aneroid sphygmomanometers provided the accuracy and portability required for clinical use. In common daily use by nurses for clinical assessment of patients' blood pressure.metallic box and contents -The sphygmomanometer is enclosed in the beige metal container. There is a click opening button on the exterior inferior end. The lid lifts via an internal hinge on the superior end to reveal a glass cartridge tube calibrated to 300 millimetres of mercury. The case and meter were manufactured in Germany (according to original museum catalogue worksheet) and identified as the “Mercurius Miniatur Modell.” The dark green rubber bulb and of tubing are in good condition. The black cotton fabric cuff shows signs of wear and is frayed at the bladder insertion opening. According to the company insignia on the bladder, it was manufactured by ACCOSON in England. superior lid - silver metal plaque in centre, engraved P.T.S., right corner of lid - white sticky label - black ink 176-01, manufacturers stamp inside lid - SPHYGMOMANOMETER/Mercurius/MINIATUR MODELL/Made in Germany, serial number 342308, on base of box, white paint - 176-01sphygmomanometer, medical instrument, blood pressure, alfred hospital nurses league, student nurse training alfred hospital

Gunter's chain (also known as Gunter’s measurement) is a distance measuring device used for surveying. It was designed and introduced in 1620 by English clergyman and mathematician Edmund Gunter (1581–1626). It enabled plots of land to be accurately surveyed and plotted, for legal and commercial purposes. The provenance of this particular Gunter Chain is unknown but it is believed to be used either by the City of Bendigo / Sandhurst or the Lands Department locally when measuring and laying out plots and streets locally. A 66-foot (20.1 m) chain divided into 100 links, marked off into groups of 10 by brass rings or tags. Each link is 7.92 inches (201 mm) long. A quarter chain, or 25 links, measures 16 feet 6 inches (5.03 m) also called a a rod (or pole) measure. Ten chains measure a furlong and 80 chains measure a statute mile. city of greater bendigo surveying

As the Yarra became unsuitable as a source of water, several attempts were made to find alternative sources for the growing population of Melbourne. It was not until 1891 that the efforts to sewer Melbourne came to fruition with the setting up of the Melbourne Metropolitan Board of Works (MMBW), now known as Melbourne Water. From 1891 until 1992, it was the responsibility of the MMBW to safeguard public health by providing a sewerage system and a safe water supply system. In 1992, The MMBW merged with a number of smaller urban water authorities to form Melbourne Water. This item was used by MMBW employees as a measuring device to determine areas or figures on a plane surface having either straight or irregular boundaries. The Compensating Polar Planimeter is of historical significance for its association with the former Melbourne and Metropolitan Board of Works (MMBW). This measuring device is perfectly intact and a rare surviving object of standard Board issued equipment. The kit is significant for its representativeness of the theme of Technology in building Victoria's industries and workforce, which continues to resonate strongly within Melbourne Water today.The instrument is inside a black metal case with accessories including: Setting bar, screwdriver, Allen key and spare pole point. Inside is also the adjustable planimeter. mmbw, melbourne water, melbourne metropolitan board of works, technology, instrument, work, measure, historic, water, staff

A two-piece object, comprising of: a Rayco 'Ruler' graphite tennis racquet, with a split shaft, and synthetic handle grip (1); and, a vinyl cover, featuring model name and measuring ruler device along the length of cover (2). Racquet is accompanied by a copper screw, sealed in a small transparent bag. Materials: Graphite, Synthetic material, Plastic, Ink, Paint, Adhesive tape, Nylon, Vinyl, Ink, Metaltennis

This representative example demonstrates a mariner’s astrolabe. Historical examples are rare. There are less than one hundred known to exist and most of these have been recovered from shipwrecks, many from Spanish and Portuguese vessels. An astrolabe is a measuring device once used to navigate the seas by observing the sun and stars to measure their altitude. The measurement of altitude could then be used to calculate the ship’s latitude but at that time in history there was no means of measuring longitude. The body of the navigational astrolabe was cast brass and much heavier, and less complicated than the variety used on land. The heavier weight and cut-away shape reduced the effect of the wind and waves when trying to use it at sea. A mariner’s astrolabe or ‘star finder’ is a simplified version than that used by Arabic astronomers to find the altitude of the sun and stars above the horizon, and time of the sunrise and sunset. It is a forerunner to the quadrant, octant and sextant and was popular for about 200 years over the 1500s and 1600s to find the latitude of a ship at sea. The user held the astrolabe at eye level and, usually with assistance, aligned the stars through the two small sights (pinnules), then read the altitude indicated by the pointer on the arm. It could also be used to sight the sun by holding it lower down, aiming it at the sun, and adjusting it until the sun shone through both pinnules. This astrolabe is an example used to demonstrate the mariner’s astrolabe, which was navigational tool of the 1500s and 1600s, in the time before longitude was able to be determined. It is a forerunner to modern navigation technology. Mariner’s astrolabe – a representative example. A gold painted, disc shaped object with cut outs and revolving arm in centre. The arm has two sights attached at right angles. The top has a ring attached. Measurements are marked in degrees in a circular scale around outer edge.flagstaff hill, warrnambool, maritime village, maritime museum, flagstaff hill maritime museum & village, shipwreck coast, great ocean road, navigation instrument, navigation tool, navigation, astrolabe, mariner’s astrolabe, measure latitude, measure altitude, arabic navigation, measuring device, star finder, astronomy, marine tool, marine instrument

A pocket-sized device for measuring wind speed Held up with the aperture in the back facing into the wind, the device works mechanically through a spring system and displays results across four scales: - Beaufort scale - Knots - Miles per hour (mph) - Metres per second (m/s) The measurement of wind speed aids in fire management circular device 5.5 cm diameter, 2 cm deep with a dial W10 US Pat 4,713,972 – Made in Germany – DE 352200102

They sphygmograph was devised as an improved device to measure blood pressure, and was a marked improvement on the first machine of its type. The sphygmomanometer was considered cumbersome and the Dudgeon sphygmograph was smaller, and once placed into its box, could be carried in a pocket. The Dudgeon sphygmograph was introduced in 1881. It was strapped tot he wrist with a metal strip that moved a stylus. This transmitted a record of the pulse onto smoked paper, creating a record of blood pressure.The sphygmograph is housed in a purple-lined, leather bound case with a metal hinge and clasp located halfway up the case. It is constructed from chrome and comprises several moving parts including wires, knobs and handles. A black fabric strap with a metal attachment is also present, used to attach to the patient's wrist.blood pressure, dudgeon, pocket-sized, portable

How widely the prisoptometer was used is unclear but the Standard Optical Company later patented a new model, The Standard Prisoptometer, on June 21, 1904. Edward Jackson's crossed cylinder technique of determining astigmatism was first detailed in the Transactions of the American Ophthalmological Society (1887)4:595-598. The convenience of Jackson's crossed cylinder lenses over the prisoptometer in weight, cost, portability and reliability meant that they were soon almost universally adopted.This is a rare item as few are known world wide.This instrument is an optometer, that is, a device to measure the refractive error of an eye. It is made of cast iron, steel, brass and glass. It contains a prism which could be rotated, and was used to view a disc or an object circle. The prism caused monocular doubling of the object circle and the separation of the two images varied as the prism rotated, depending on the astigmatism present. The axis of the astigmatism was indicated by the prisoptometer and trial lenses were used to determine the the magnitude of the spherical and cylindrical refractive errorImprinted:"DR CULBERTSON'S PRISOPTOMETER/ GENEVA OPTICAL COMPANY MAKERS, GENEVA, N.Y./ PATENTED SEPT, 21, 1886". Stamped "853" on eyepiece and lens mounting.optometry, prisoptometer, optometer, astigmatism, refractive error, refraction, culbertson

Report and photographs of various mechanisms to identify and check clearances for Safety Zones on tramways. .1 - Report - 4 pages stapled in top left hand corner - titled "Interim Report - Nicholson Street Safety Bars", dated 20/6/1978 signed by R. G. Vanselow. Describes the work involved in providing a type of "jiggle bars" leading up to the safety zone. Many photographs of the various types of safety zone marks were included within the folder. The photos of 912 are related to the clearance testing carried out during 1973 for the Z class. See also Reg Item 480? .2 - tram 912 fitted with a wooden device to measure clearances - with a concrete safety zone being checked. .3 - tram 1040 in Bourke St with a Safety Zone sign on the left - King St? .4 - tram and traffic at the Bourke St terminus. .5 - not used. .6 - tram 1000 at ditto on a wet day .7 - as for .2 .8 - ditto .9 - ditto .10 - side on view of W2 447 with a concrete prow fitted with a set of flashing lights. .11 - to .15 - series of large prints of enlarged 35mm negatives of night testing of safety zone sign taken at South Melbourne Depot and in St Kilda Road. .16 Bourke St - looking west at Russell St? with caption "prow replacing type 2 (Hairpin sign) with both original (white) and new MCC (Yellow) line marking on approach". .17 - Bourke St - looking west at Kings St and caption "Prow replacing type 2 (Hairpin sign) with original line marking on approach. .16 and .17 taken on Polaroid Instamatic cameras.Some of the photos have captions written on the rear.trams, tramways, tram stops, bourke st, safety zone, testing, z class, safety, tram 912, tram 1040, tram 1000, tram 447

A Gunter’s Chain, an old land surveying instrument, is named after its inventor, Edmund Gunter (1581-1626), an English mathematician and astronomer. It was first produced in 1620. The tool has 100 links and is 66 feet or one chain long. The links are marked off in groups of ten by metal tags or rings. A quarter chain (25 links) is called a rod or pole and ten chains make a furlong and 80 chains a mile. The traditional cricket pitch is 22 yards or one chain long. This chain is said to have been used by Gilbert Nicol when the Warrnambool to Hamilton Road was constructed in the 19th century. Gilbert Nicol was an early settler in Warrnambool who, with John Craig, established the first hotel (and the first building) in Warrnambool in 1847. Nicol later owned the property ‘Rosehill’ in the Warrnambool area. As the chain was given to the Warrnambool and District Historical Society by the Town Clerk, Keith Arnel, it is likely that the chain was one of the items in the old Warrnambool MuseumThis Gunter’s Chain is of importance because it is an early land measuring device that was used for over 250 years and has great historical and mathematical significance. If it is correct that it was used by Gilbert Nicol when the Warrnambool to Hamilton Road was built then it has considerable local significance and dates back to the 19th century. This is a metal tool which consists of 100 metal pieces or links joined together by loops at each end with two metal loops in between each link. The links joined together form a chain. The two ends of the chain have small metal handles attached. At intervals along the chain there are additional rings or metal pieces attached. The metal is very rusted.gunter’s chain, land measurement tools, history of warrnambool

This collection of 14 photos was most likely taken in the 1970s and 1980s in Air Survey Squadron. The PDP 11/70 minicomputer shown in photo .1P was the operating system introduced in 1977 as the mainframe system for the control of the APC4, aerial triangulation block adjustments, SORA OP Analytical Orthophoto control, APR Analytical Terrain Profile Recorder computation, graphics, and general computing. Technicians used the Wild A9 Stereocomparator shown in photo .2P to accurately measure between pass, tie, and survey control points on aerial photographs. The Zeiss D2 Planimat Stereoplotter shown in photos .3P to .4P was used for analytical orthophoto control. It was introduced in 1972-1973 The Zeiss (Jena) Stecometer analytic stereocomparator for air photography shown in photos .5P to .11P and .14P was introduced at Air Survey Squadron in 1963. Aerotriangulation production was expedited using computers for analytical photogrammetric processes. The technician accurately measured between pass, tie, and survey control points on aerial photographs. Wild PUG4 point transfer devices shown in photos .12P to .13P were introduced in c1968 superseding the PUG2 devices. PUG4 devices were used by technicians to stereoscopically view the photography containing the survey control points and the mapping aerial photography. The Control points were transferred from the control photography to the mapping diapositives of aerial photography by drilling their locations into the photographic emulsion.This is a set of 14 photographs of Air Survey Squadron personnel operating aerotriangulation equipment at the Army Survey Regiment at Fortuna, Bendigo, c1970s to 1980s. Photographs .1P to .13P were on 35mm colour slide film and scanned at 96 dpi. Photograph.14P was printed on photographic paper and was scanned at 300 dpi. They are part of the Army Survey Regiment’s Collection. .1) - Photo, colour, c1979, PDP-11 minicomputer. .2) - Photo, colour, c1970s, Unidentified technician operating a Wild A9 Stereocomparator. .3) - Photo, colour, c1970s, Zeiss D2 Planimat Stereoplotter. .4) - Photo, colour, c1970s, Zeiss D2 Planimat Stereoplotter, unidentified technicians. .5) - Photo, colour, c1970s, Zeiss D2 Planimat Stereoplotter, SGT Christopher Wardley. .6) - Photo, colour, c1970s, Zeiss D2 Planimat Stereoplotter. .7) to.9) - Photo, colour, c1970, Zeiss (Jena) Stecometer, unidentified technicians. .10) to.11) - Photo, colour, c1988, SPR Toni Wright operating a Zeiss (Jena) Stecometer. .12) - Photo, colour, c1970s, Wild PUG4 point transfer device, SPR John Shepard. .13) - Photo, colour, c1970s, Wild PUG4 point transfer device, SPR David Edwards. .13) - Photo, colour, c1970s, Wild PUG4 point transfer device, SPR David Edwards. .14) - Photo, colour, c1980, Zeiss (Jena) Stecometer, SGT Bruce Hammond.Some of the equipment is annotated on the frame of the 35mm slides.royal australian survey corps, rasvy, army survey regiment, army svy regt, fortuna, asr, aerotrig, photogrammetry

This general purpose Multi-meter was manufactured after 1950 and used by the SEC Vic (Kiewa Hydro Electricity Scheme) from that date until late 1900's. It was used to measure very small voltages associated with the operation of the various Hydro Generators. The readings were able to be shown by the resistor in use in the current circuit. During this time period, high quality testing instruments were either sourced from Europe or England. This particular meter was manufactured in the Netherlands. This type of "old" analogue meter was replaced by digital meters whose electronic components are a fraction of the size of the older analogue ones.This analog General Purpose multi-meter is quite a large (for handheld mobile) apparatus which permits the easy monitoring of electrical variations within the large SEC Victoria Hydro Scheme's electrical generators. These generators are powered by the hydro force of "stored" water at a higher altitude. The establishment of both the NSW and Victorian Hydro schemes was achieved from the mid 1900's to the 1960's. At this point in time the need for additional power sources to quench both an industrial and domestic demand for electricity was purely an economic and not and environmental (carbon reduction) factor. This hydro scheme was instigated by "the Government of the day" as a bold move and was the major force of the World War II refugee and "technical" workforce inclusion of skilled and unskilled migration into the Australian environment. Although this mass "invasion" of workers with families was thought of in some circles as intrusive, the expansion of population post war years and its integration into the Australian rural sector, produced the multi- lingual multi-cultural diversity of later years.This General Purpose Multimeter is an analogue meter i.e. it has a needle arm that moves across a scale of divisions. This is a large(hand held) device due to the mechanical movement system within and the large size of its electronic components of its circuitry.There are two black bake-lite push buttons operating the wire inserts Positive/negative leads at the top. The meter (protected with a glass window) has clearly marked graduations (top - volts, bottom amperes). Below this are two bake-lite dials (left "potentiometer the right one measuring range selector). Below this is a "dial" switch to input the desired resistance measuring range "V" Front "H&B ELIMA" and to the right Elavi 15n. 0n the front side is a label "STATE ELECTRICITY COMMISSION OF VICTORIA TRANSMISSION DEPT E.C.No." On the bottom of the base is a stenciled layout of the battery "layout" including the fuse . The information notice is presented in five languages starting with German, English,French, Italian, Spanish and Dutchsec vic kiewa hydro scheme, alternate energy supplies, alpine population growth

This testing voltmeter recorder was last certified by SEC Vic laboratories on the 17/4/77. It was used extensively as mobile recorder placed for periods of one month at locations experiencing unacceptable fluctuations of power. These locations would cover the North East regions of Victoria. They cover voltage drops at domestic and business properties especially those that were experiencing regular fluctuations(daily) at approximately the same time of the day. As the electrical network is required to operate within a set level of voltage, fluctuations outside of this has to be investigated and necessary remedial action taken. This is especially so for rural properties where power "drainage" can occur through animal/bird and tree interference. It can also be the result of defective wiring and overloading at peek operational times (milking machines).This mobile voltage recorder is very significant to the Kiewa Valley because it highlights the difficulties that can occur in maintaining a power supply that experiences fluctuating power demands by the rural industries that it supplies. The requirement of a mobile testing apparatus to cover the various sections in the Kiewa Valley and other rural areas in the northeast region is one of necessity as electricity once connected to a rural property is a labour saving supply as generators on rural properties require a higher degree of maintenance an ultimately at a higher cost. The testing of the SEC Vic supplied electricity to rural properties,those who had previously run on generators, had to be quick and unassuming with certainty of correct supply levels.The mechanism of this voltage recorder has been installed(by the manufacturer) into its own protective wooden box. This box has a front (swing open) lockable section which permits direct access to the installed measuring equipment (for servicing and data collection). The top section of the box has two screw on terminals for access to the machine being tested. This tester has its own inbuilt ink supply facilities and a mechanical clockwork device that unwinds a roll of paper onto a second roll at a rate of 10 mm per hour. The recording chart is marked with time slots against voltage. There is a recording arm which has an ink pen at the end. Both arm and pen carry the ink supply from the ink reservoir, located on the left side of the cabinet door in specially constructed bottle holder( three small bottle capacity). To record a suspect power problem to a home or business establishment the voltmeter is connected to a power supply outlet being tested and wind the recording clockwork mechanism (gives a four week running time). Before leaving the recorder in situ the electrician checks to see if the chart is recording the correct voltage and that the clock mechanism is advancing correctly.On the front of the access "door" at the top a metal label "RECORDING AMMETER" below this "MURDAY SYSTEM" below this "ALTERNATING CURRENT" and below this the manufacturer's registered number "No. 139156" Below this is a metal tag with State Electricity Commission of Victoria Electrical Engineer's Section equipment number "338" Below these tags and above the viewing window is the manufacturer's dtails "EVERSHED & VIGNOLES Led LONDON"sec vic kiewa hydro scheme, alternate energy supplies, alpine feasibility studies temperature, rainfall, power outages

When this AVOMETER was being utilised in the early 1950's it was at the "leading" edge of electrical measuring instrumentation.The first meter was produced by Automatic Coil Winder and Electrical Equipment Co. in 1923. This model was produced in the time from 1933 to 1951 when it was superseded by the most popular model, Model 8 (1951 to 2008).This AVO meter brought the measuring of three electrical power indicators i.e., amps, volts and ohms into one measuring unit. By using a "one fits all" unit, the carrying of separate measuring devices was reduced considerably. The need for a mountainous and a large area of operational requirements, such as the SEC Vic Kiewa Hydro Electricity Scheme, to minimise the weight of equipment carried by electricians and technicians was of the utmost relevance. The significance of this meter to the Kiewa Valley region relates to the impact of modern technology (at that time) upon a mainly rural environment. This equipment shows how the boost of "modern" equipment into the area because of the "Hydro Scheme" was facilitated a lot faster than would have taken under "normal" evolutionary time. The speed of information on all "new technology" had a relatively slow assimilation rate to those living in rural communities. This AVOMETER is a Model 7 MKII, production pre 1951. This meter measures electrical Amps, Volts and Ohms and has two internal batteries for its power. The main casing is made from aluminium with a bake-lite front. The front has a "window" detailing, with a needle pointer, the amount of electrical power being tested. There are two big dial switches, detailing Direct Current(DC) and Alternating Current(AC) when reading measurements of Ampere, Voltage and Ohms for power. This meter took the place of three or four meters used earlier. Modern meters (2000 onwards) have become digilised and are considerably lighter in weight and smaller. There are two electrical connection leads (one black and one red) each has a removable clasp and is 125cm long.Molded on the front centre panel " UNIVERSAL AVOMETER". Below this and above the left hand dial "D.C. SWITCH" .Above the right hand switch the right "A.C. SWITCH". On the left of each switch is an arrow pointing to it.The left switch is marked with a "+" and the right one with a "-". There is a "divisional 2" mark. Between and below the dials is "CUT OUT" plunger.electrical meters, electrical equipment, sec vic., state electricity commission of victoria, mt beauty, bogong village

When this AVOMETER leather case was being utilised in the early 1950's it contained the "leading" edge of electrical measuring instrumentation.The first meter was produced by Automatic Coil Winder and Electrical Equipment Co. in 1923. This model was produced in the time from 1933 to 1951 when it was superseded by the most popular model, Model 8 (1951 to 2008).This leather case which holds its AVO Meter brought the measuring of three electrical power indicators i.e., amps, volts and ohms into one measuring unit. By using a "one fits all" unit, the carrying of separate measuring devices was reduced considerably. The need for a mountainous and a large area of operational requirements, such as the SEC Vic Kiewa Hydro Electricity Scheme, to minimise the weight of equipment carried by electricians and technicians was of the utmost relevance. The significance of this meter to the Kiewa Valley region relates to the impact of modern technology (at that time) upon a mainly rural environment. This equipment shows how the boost of "modern" equipment into the area because of the "Hydro Scheme" was facilitated a lot faster than would have taken under "normal" evolutionary time. The speed of information on all "new technology" had a relatively slow assimilation rate to those living in rural communities. The use of solid leather carrying bags for transporting equipment up and down the mountains provided some form of protection against bumps and dust.This carry case for its AVO meter has an outer leather covering with an inner thick cardboard liner. The case has two mild steel buckles but stitched onto one side but no lid to fasten down. The sides are stitched together with strong tick twine. On either side there are small strap holds. On the bottom are four large chromed metal lugs acting as feet to keep the bottom from lying flat on any floor. The outside bottom has been branded "SOLID COWHIDE"Between the front two buckles is a identification plate riveted onto the cowhide "STATE ELECTRICITY COMMISSION OF VICTORIA ELECTRICAL ENGINEERING SECTION"electrical meters, electrical equipment, sec vic., state electricity commission of victoria, mount beauty, bogong village

Possibly used in a shop or as a travelling set of scales for a hawker.This item is an example of an early device used for measurement.A set of hanging scales. Two copper containers are suspended one from each end of a beam. In the centre of the beam is a hanging rod to the top and a pointer at the bottom.A number of scroll designs are imprinted into the beam. scales weight-measure hanging-scales

Typed letter to R. J. Bartle, Esq., from D. O'Connor, Engineer and ?, Chief Engineer, of the National Roads and Motorists Association (N.S.W.) dated November 8, 1936. Letter mentions four tests done in a car over a stretch of ground to measure fuel consumption. Tests were done with and without the device installed in the fuel system. Paper has printed letterhead and the names of the President, Vice-Presidents, Hon Treasurer, Council and Secretary with the AAA and NRMA emblems on the left side of the page.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, national roads & motorists' association (n.s.w.), n.r.m.a. house, australian automobile association, r j bartle esq, hon j c watson, hon g r w mcdonald, charles ludowici esq, alderman james mcmahon, j bryden brown esq, d m cooper esq, e h cowdery esq, c r davidson esq, hon j m dunningham mla, a m graham esq, a s lumby esq, rev father w nicol, dr harold norrie, dr f antill pockley, ald h l primrose mla, a e rudder esq, lt-col g c somerville cmg dso, major blair wark vc dso, g a l wilson mla, h i johnson fiis, d o'connor?

This pH meter was made in 1946 by Cambridge Scientific Instrument Co. Ltd. in London. The company was founded in 1881 and the owner eventually became Horace Darwin, the youngest son of the famous scientist Charles Darwin. It is a portable version that can be used on-site in many different situations. A similar instrument was used by the Chemistry Department of what is now the University of Cambridge. The science of pH measurement began in the 1910s and was further developed in 1926. The pH meter is an electronic scientific instrument used to determine the pH measurements of a solution accurately; the amount of acid and alkaline in it This measurement can have many other applications helping to maintain the appropriate balance for a particular result. For example, it can measure the pH of pharmaceutical medications, soil, swimming pool water and hair shampoos. This Cambridge portable electronic pH instrument was made in 1946 by a company specialising in scientific instruments. It is an early example of much smaller devices used today in many different fields including medicine, and the preservation and conservation of shipwreck artefacts. Flagstaff Hill Maritime Museum and Village's Curator uses a pH meter today in the conservation process of a historic cannon that was recovered from the 1839 wreck of the vessel 'Children'.Scientific instrument, electric Cambridge Portable pH Meter in a polished wooden box with compartments, fold-out doors, and leather carry handle. Includes blue covered Instruction manual with a 'Certificate of Test' inside, and chemicals. Electrodes mounted in compartment. The lid is separate from the base, attached by pins and hinges. A plate inside the lid gives instructions for 'Preparation for Use'. Made by the Cambridge Instrument Company, London, in 1946.Printed on plate: "Cambridge Instrument Co. Ltd, 13 Grosvenor Place, London, S.W.1' Certificate dated: "6-3- 46" (1946)flagstaff hill, warrnambool, maritime museum, maritime village, great ocean road, shipwreck coast, ph meter, cambridge scientific instrument co. ltd, horace darwin, cambridge university, ph balance, scientific instrument, ph measurement