Standard issue item as used by Australian servicemen during conflict in Vietnam (1962-1973). Plotting boards are a secondary means of firing control for all mortars. The user can determine deflection, azimuth, and range.The M19 plotting board consists of a rotating disk of transparent plastic and a removable range arm (missing), both attached to a flat round white grid base.North, South, East , West / Rotating disc calibrated with numbersplotting board, m19, mortar

Standard issue item as used by Australian servicemen during the conflict in Vietnam. A plotting board is a mechanical device used as part of a firing control system to track the observed course of a target, project its future position, and derive the azimuth (or direction) and range needed to direct the fire of the guns of a battery to hit that target.White plastic base. A circle marked with grid lines is printed on the base and a vernier for finding azimuth deflections in along top edge. Rotating disc pivots at the centre atop the disc with distances measured radially form 0 at the centre to 3400 metres around the rim range form 0-6400 metres. A scale pivoted at the centre assists in reading distances.Nth and Sth top and bottom on rotating disc. East and West in centre distances in black on outer of disc. Distances in green on inner North, South, East, West. Varn W left bottom of disc. varn E on right bottom of disc.plotting board, m16

WWII Australian Issue Map Case/ Plotting Board - with map

E. R. Watts and Son, makers of theodolites and other surveying instruments, of 123 Camberwell Road, London. The company was established in 1856 by Edwin Watts at twenty-three he had saved £100 from his earnings to start the business with his staff consisting of one boy and later Alexander Clarkson as an apprentice with the workshop a small room over a Bemondsey stable. Watts' first order was from Negretti and Zambra for a mining dial Alexander Clarkson In the early days the firm worked mainly on marine compasses. Edwin Watts would go down to the Docks to adjust the compasses once they had been installed on the ships. In May 1873 the business moved to larger premises a house with a garden. The workshop was also the home of Mr and Mrs Watts and their five sons and three daughters. By now there were fifteen to twenty men employed by the firm. The company were commissioned to supply the Theodolites and Levels for the construction to the Canadian Pacific Railway in 1881. Towards the end of the century, the firm began to make heliographs continuing to produce them for the government until just before the Second World War when by agreement assigned their manufacture to another firm. 1904 The first dividing engine was completed by George William Watts. It was so remarkable an instrument at the time and for years afterwards, In 1907 Arthur Ames went to Canada and started an organisation in Winnipeg in 1909 this became a separate company called E. R. Watts and Son Ltd. of Ottawa. This firm developed considerably and was eventually with the co-operation of three other instrument companies (Cambridge Instrument Co, Ross, and Negretti and Zambra), were reconstituted as ”Instruments Ltd” of Ottawa and Toronto. During the next ten years, the firm expanded greatly to include glass grinding, leather work, dividing and engraving, testing, adjusting and packing. This expansion was continued during the First World War when workshops were completed and the machinery installed and running within eleven weeks from the start of construction. During the war, a Sergeant Coles, among the rats, lice and mud of the trenches, fitted various bits of scrap into his cocoa tin and made the first Flash Spotter for plotting the positions of enemy guns. Coles was rushed home to the firm's factory where he and George William Watts designed a spotter not made out of a cocoa tin and as a result, the Watts Vertical Force Variometer was developed during WWI. Other Watts instruments made in the First World War included the Light Mountain Theodolites which were taken on Mt Everest expeditions. In 1919 ER Watts and Sons was incorporated as a limited company and in 1939 G. A. Whipple joined the Board of Directors. Shortly afterwards, Frank Charles Watts died having been Chairman of the firm for over 37 years and seen it through the First World War with all its expansions and difficulties. He was succeeded by his brother George William Watts with the vacant post of Managing Director being filled by G. A. Whipple. During the Second World War, the company expanded further and the number of employees rose to well over 1,300. In 1946 Watts acquired 78% of Adam Hilger and the microscope maker James Swift and Son Who were Manufacturers of Theodolites, Levels, Alidades, Meteorological Instruments, Variometers, and many other types of scientific instruments Then in 1948 the company amalgamated with Adam Hilger as Hilger and Watts which was then incorporated as a public company.Naval Rangefinder with a vertical wooden handle, and an arrangement of optical lenses. Three reversible brass inserts calibrated on both sides in yards, correspond to various base heights, (20 and 25 feet, 30 and 35 feet and 40 and 50 feet). They are fitted along the axis of the instrument. When the scale for the appropriate base height is selected and inserted, the carriage can be slid for coincidence and the distance read at the index mark on the sliding carriage.inscribed "Rangefinder Cotton Type Mk II" Calibrated scale up to 5000 yds (50 ft), 5000 yds (35 ft), 4000 yds (25 ft) made by E. R. Watts & Son.flagstaff hill, warrnambool, shipwrecked coast, flagstaff hill maritime museum, maritime museum, shipwreck coast, flagstaff hill maritime village, great ocean road, rangefinder, cotton type, e r watts & sons, naval range finder, marine equipment

Black hard covered book with red spine, holding Victorian Education Gazettes for one calendar year. .1) 1910 .2) 1912 .3) 1911 .4) 1914 .5) 1918 Images: Open Air Classroom Black Rock; Open Air Classroom, Jeetho, Gippsland; Open Air Nurses bedroom, Mildura; Gym at Canterbury School ; Babies and Nurses at Melbourne Foundling Hospital; Camp at Portland; Alexander Peacock Opens a Melbourne School; Unveiling Major Mitchell Memorial at Mt Arapiles; Agricultural Plot; School Interior; Swimming Drill; Graham Dux Prize Board; Bathing Place; Classroom with blackboard and pictures; Major Mitchell's Map; Melbourne, Derbyshire; Market Place Melbourne; The Blackwood; World War One Send-off at The Athenaeum; Scarsdale Old Boy's logo; Sloyd articles for the Field Hospital; World War One; Gifts for Transport to the Wharf; soldiers; ANZAC Day; ANZAC Day Medalion .5) 1915: Education Department's War Relief Fund, William Park obituary, Closer Settlement Act 1912, Agriculture, needlework, Swimming and Life Saving, explorers, Gregory Blaxland, Matthew Flinders, Composition, Geography, potatoes, onions, gardens, Needlework for Infants, Iona and Staffa, Trained Primary Teacher's Course, Electricity, Electrical Technology, hygiene, Arbour Day, Horticulture, Wattle Day, Bird Day, Technical Schools, Landing at Gaba Tepe, Evils of Alcohol, Old Boys of Scarsdale, Belgium, Teachers' College Images: The British at War, The Sonnet, History and Patriotism, Male Swimming Teachers Summer School at Geelong, Women Swimming Teachers at Port Fairy, Buln Buln State School, Burwood East State School, needlework plans, methods of Rescue and Resucitation. plan of the journey of Gregory Blaxland, Macquarie House, teachers killed (William Ross Hoggart, Stanley Robert Close, William Roy Hodgson, Campbell McDiarmid Peter, William Henry Dawkins, William Hugh Hamilton, Frederick McRae Neal, Vernon Brookes, Frank J. Olle, Alfred J. Collins, Ernest R. Fairlie, William J. McLaren, A.E. Smith, Thomas Patton, Francis W. Kemp, Frederick G. Hall, Rupert O. Hepburn, Woolston J. Govan), Frederick Harold Tubb VC, Botanic Gardens Red Gum, Shelter Pavillions, Head of Wheat, Australian Commonwealth Flag, Iona Cathedral, Drawing exercises, ANZAC Madallion, School Rolls of Honor .6) 1916 - Nature Study, war relief, school gardening, horticulture, singing class, geography of the war, School Rolls of Honour, Ponsonby Carew-Smyth, Astronomy, ANZAC Day, Empire Day, Arbor Day, "Some Suul of Goodness in Things Evil" by Frank Tate, War Relief Gardeners' League, ANZAC Day medallion, Solar System, Abolition of German Schools in Victoria, ANZAC Avenues, avenues of honour, Geography of the War: The West, War relief and handwork, Victorian State Schools Horticultural Society, Patrick Maloney obituary, formalin lamps, Victoria League of Victoria, Wonwondah East Roll of Honor Images - Teachers killed (John Clarke, A.C.H. Jackson, Alexander Robertson, Noel Gambetta, Ralp E. Leyland, Laurance J. Woodruff, Walter E. Cass, Percy D. Moncur, Thomas M. Carmichael, Edward G. Brain, Reginald N.F. Woods, George E. James, William Colvin, David Dobson, Stanley L. Robinson, Charles Allen, G.E. James, H.F. Curnow, Franl L. Cousins, James R. Thompson, Henry H. Campbell, George E. Read, Ernest D. Morshead, Wilfred S. Merlin, Henry R. Wright, George B. Webb, Noel Nicholas, David H. Thomas, Charles A. Levens, Thomas R. Fenner, John M. Daniell, P.J. Larkin, Ralph Smith, Philip Ormsby), school rolls of honour, Swimming Instructors at Queenscliff, The Southern Sky, Map of the North Sea and its Littorals, Easter School of Horticulture at Oakleigh, Map of the Eastern Front, Map of Mesopotamia, Map of the War Area in the Egyptian Campaign, leeches for the Melbourne Hospital .7) 1917 - Swimming and Life-Saving, Childre's FLower Day, Education Department's War Relief Fund, State War Council, Horticulture, Bird Day, Swimming, Growing Chicory at Cowes Images - Teachers killed during World War One (G.M. Nicholas, William C.W. Spencer, J.W.C. Profitt, Ivon C. Bromilow, John Colwell, Robert W. Campbell, Arthur P. Bourchier, Francid G. Houston, Claude N. Harrison, Edgar Williams, Leslie A. Stevens, Charles E. W. Chester, Stanley R. Green, Walter Baker, Arthur G. Scott, Harry L. Swinburne, Horace W. Brown, Arnold Bretherton, Edward W. Jenkins Aubrey Liddelow, Ewen A. Cameron, Edmund R. Lyall, John H. Martin, Harry Bell, Frank L. Nicholls, Melville R. Hughes, Edwin W. Hauser, Walter S. Filmer, Walter G. Barlow, Henry A. Donaldson, Edward H. Jones, Walter W. Raw, Alfred W. Dean, Wiliam Lea, Frederick G. Drury, J.T. Richards, Norman G. Pelton, Lance-Corporal Doran, Kenneth F. McKenzie, William F. Robertson, Wiliam Jarrott, Norman Graham, George G. Paul, Victor Green, Arthur William Rennie, Alfred J. Glendinning, Robert B. Liston, Eward P. Toll, George Jones, Errol E. Rodda, Christian P. Christensen, Charles F. Sydes, H.G. Clements, Norman C. Fricker, J.M. Romeo. Eric N. Lear, Thomas J. Bartley, Norval Birrell, Frederick H. Tubb. J.T. Hamilton Aram, Arthur Wilcock, William M. Conroy, Alex. H. Miller, Patrick J. Cunningham, Charles S. Mitchell, John R. Maddern, James Roadknight, Harry Arundel, Jack C. McKellar, duncan M. McKellar, George S. Manfield, Edgar C. Holmes, George A. Young, Raymond A. Gardiner, William B. Bell, William Opie, George R. Scott, Richard V.B. Vine, Herbery S. Marshall, Hugh St Omer Dentry, George B. Fullerton, Harry Oulton, Iva F. Morieson), School Honor Books, Drawing, Presentation of 30,000 pounds to the British Red Cross at Melbourne Town Hall .8) 1918 .9) 1919 - Photographs of World War One soldiers from the Education Department, Margaret Montgomery Memorial, 1918 Act relating to State School Teachers, State Scolarships, Victorian State Schools' Horticultural Society, Pneumonic Influenza, Spanish Flu, epedemic, swimming and life savinfJunior cadet training, vacancies in Fiji, School Committees, Arbor Day, Arbour Day, Henry Harding of Yinnar, Planting Trees and Shrubs, Juvenile Crime, The use of 'Get', Soldier-Teachers from Overseas in Congress London, Australia's Effort in the War, Military, Working Bees, Tree Planting, fence building, Welcoming Home a Returned Soldier, Avenue of Honour planting, Discipline, Unveiling an Honor Board, School gymnasium, school tennis court, E. E. Crogger grave at Aldershot, The School Honor Book. War Relief Fund, Commonwealth War Record, Caulfield Military Hosptial, ANZAC Day Pilgrimage, Jimmie Panikin, Donald Fraser, Arthur Mee, Card Sun Dial, Balboa Day in Honolulu, William Hamilton, Alfred Jackson, The Backward Child, Flies, Language Teaching and Learning, Spelling, The Education of the Adolescent, victorian education gazette, education gazette and teachers' aid, sloyd, william a. cavanagh, james i froebel, school, education, world war one, memorials, alfred williams, exploration and settlement, cadets, australian naval college, bernard o;dowd, birds, swimming, drawingempire league, eucalypts, paper in history, forestry, arbor day, identification of trees, forestrey museums, fiji, gravel hill school band, horticulture, hygiene, gould league of bird lovers, life saving, la perouse, bandin, j. holland, w. hamilton, charles sturt, principles of archimedes, james holland, william hamilton, scarsdale old boys' reunion, foundling home melbourne, montessori education, open air schools, james hughes, marie corelli, flinders sydney harbour, major mitchell's map, tooth brushing, r.h.s. bailey

This is a set of 12 photographs of A Section, 1st Topographic Survey Troop taken from the 25th of May to the 12th of June 1966 during their deployment to Vung Tau, Vietnam. Led by OC CAPT Bob Skitch, the ten personnel from A Section 1st Topo Svy Tp and six personnel from supporting units were the first contingent from the Royal Australian Survey Corps deployed to provide topographic support to the Australian Task Force in Vietnam. They arrived in Saigon, Vietnam on the 10th of June 1966 enroute to the Australian Reinforcement Unit (ARU) “back beach” camp in Vung Tau. The ten RA Svy technical personnel from 1st Topo Svy Tp deployed were: WO2 David Christie, SGT Stan Campbell, SGT Dave King, CPL Jim Roberts, CPL Dennis Duquemin, CPL Des Ceruti, SPR Derek Chambers, SPR Brian Firns, SPR Joe O’Connor and SPR Ron Smith. External personnel deployed were: WO2 Snow Rollston from Northern Command Field Survey Unit, T/CPL Peter Clarke – orderly room corporal, T/CPL Alan Carew – Technical Storeman, SPR Stan Johns – Map Storeman, SPR Boots Campbell – batman/driver and PTE BNF Brunning – cook. The ship featured in photos .1P and .2P was the aircraft carrier HMAS Sydney on its 4th voyage to Vietnam. On board were SGT Stan Campbell and SPR Brian Firns, tasked to manage A Section’s stores and equipment. The rest of A Section deployed to Vietnam by air on the chartered Qantas 707B ‘City of Longreach'. A Section’s main tasks were to establish a Theatre Grid, map compilation and map revision; Engineer Survey Support in the camp and to the civil community; give assistance to the Cordon Search Missions by producing large scale plots from aerial photos with every house and fence etc plotted; and then reproduce these by silk screening usually, within a 24-hour period. RA Svy’s support concluded with the withdrawal of Australian troops from Vietnam in 1972. More information on the A Section, 1st Topographic Survey Troop and the Army Survey Regiment’s supporting role is provided in pages 89 to 94 of Valerie Lovejoy’s book 'Mapmakers of Fortuna – A history of the Army Survey Regiment’ ISBN: 0-646-42120-4.This is a set of 12 photographs of A Section, 1st Topographic Survey Troop (1st Topo Svy Tp), taken from the 25th of May to the 12th of June 1966 during their deployment to Vung Tau, Vietnam. The black and white photographs were printed on photographic paper and are part of the Army Survey Regiment’s Collection. The photographs were scanned at 300 dpi. .1) &.2) - Photo, black & white, 1966. HMAS Sydney departing Woolloomooloo wharf en-route to Vietnam. .3) - Photo, black & white, 1966. A Section 1 Topo Svy Tp relaxing in a bar before deployment. OC CAPT Bob Skitch in centre of photo. .4) - Photo, black & white, 1966. Unidentified A Section 1 Topo Svy Tp personnel and troops from other units relaxing in a bar before deployment. .5) - Photo, black & white, 1966. A Section 1 Topo Svy Tp personnel arrival by bus at Saigon (Tan Son Nhut) Airport. OC CAPT Bob Skitch 4th from right. .6) - Photo, black & white, 1966. A Section 1 Topo Svy Tp personnel boarding the USAF Hercules aircraft enroute from Saigon (Tan Son Nhut) Airport to Vung Tau Airfield. OC CAPT Bob Skitch on left. .7) - Photo, black & white, 1966. A Section 1 Topo Svy Tp personnel and troops from other units boarding the USAF Hercules aircraft enroute from Saigon (Tan Son Nhut) Airport to Vung Tau Airfield. .8) & .9) - Photo, black & white, 1966. A Section 1 Topo Svy Tp personnel arrive at the Australian Reinforcement Unit (ARU) “back beach” camp. .10) - Photo, black & white, 1966. A Section 1 Topo Svy Tp personnel in oppressive conditions work on map products. .11) - Photo, black & white, 1966. Group photo of A Section 1 Topo Svy Tp. OC CAPT Bob Skitch on far right. .12) - Photo, black & white, 1966. Group photo of A Section 1 Topo Svy Tp. OC CAPT Bob Skitch 3rd from right.Annotated with the photo set - ‘ DET 1 Topo Svy Tp Vung Tau 25 May to 12 of Jun 66’royal australian survey corps, rasvy, army survey regiment, army svy regt, fortuna, asr, 1st topographical survey troop

Six year old Judith Furphy was the first person known to have been buried at Kangaroo Ground Cemetery in May 1851. The cemetery is situated on an ancient river bed with exposed Nillumbik sands. The rest of the district is formed from black volcanic soil which was hard to dig. According to local historian Mick Woiwod (deceased) the site may have been a burial ground for the local Wurundjeri people as the exposed softer sands were always their prefered camping sites. The Hon. Ewen Hugh Cameron who lived at Pigeon Bank and was the Member for Evelyn for 40 years (1874-1914) was buried here in 1915. Published: Nillumbik Now and Then /​ Marguerite Marshall 2008; photographs Alan King with Marguerite Marshall.; p39 The Wurundjeri people might have buried their dead on the site of the Kangaroo Ground Cemetery, according to local historian Mick Woiwod. Kangaroo Ground was a premier hunting ground, but camping on the black volcanic soil would have been uncomfortable. Unlike most of Kangaroo Ground, its cemetery, on an ancient river bed, comprises a rare exposure of Nillumbik sands – always the preferred campsite for Aboriginal people. The cemetery area is the only place where the soil was soft enough to dig a grave easily.1 Six-year-old Judith Furphy was the first person known to have been laid to rest at the Kangaroo Ground Cemetery. She died on May 17, 1851, from a chill caught by resting on wet grass. Local Andrew Ross wrote ‘..no public burying place existed nearer than Melbourne. The case being considered urgent, a general meeting of the settlers took place on the evening of the 17th……. The result was the selection of unoccupied crown land …….which was subsequently granted by Government for a public cemetery.’2 Judith was buried the next day on May 18. Her grave was marked by the trustees with a plaque, which unfortunately states nine years old, when she was probably only six. Judith came from an illustrious family. Her brother, Joseph, was the author of Such is Life and other works. Another brother, John, developed and manufactured the famous Furphy water cart, which distributed water to World War One soldiers along with the latest rumours. Hence the name Furphy entered the Australian idiom, as synonymous with ‘rumour’. Judith’s father Samuel helped build the first Kangaroo Ground church school. Inside, near the entrance of the cemetery, on Yarra Glen Road, stand a rotunda and a water tank. Occasional benches invite mourners to pause and remember. The gate with wrought iron and brick supports, bears the inscription ‘Erected by Sir Ewen and Lady Cameron in memory of their daughter, Flora Margaret’. These are only two of the famous people connected with this cemetery. The Hon. Ewen Hugh Cameron JP and MLA from 1874 to1914, who lived at Pigeon Bank, Warrandyte Road, was buried here in 1915. Unrelated, but with the same name, was Sir Ewen Cameron who had been Minister for Health and was laid to rest there in 1964. Sir Herbert Gepp, a leading industrialist and the former owner of Garden Hill, at Yarra Glen Road, was buried there in 1954.3 Many of the more imposing tombstones belong to the earlier graves. Unfortunately bushfires have cracked several. But this adds to the melancholy attractiveness of the cemetery, graced by some beautiful eucalypts, cypress and pines. Early pioneering families represented at the cemetery include Armstrong, Barr, Bell, Harkness, Jardine, Johnston, Rogerson, Stevenson, Thomson and Walters. Armstrong and Bell were among the first families to come to the district and Stevenson owned the district’s first sheep station. It took in much of present day Christmas Hills, which was the name he gave his sheep station. Harkness was the first to suggest a Kangaroo Ground school be built, and one of the first to suggest establishing the Eltham District Road Board. Many of these families leased pastoral land before the mid-century and bought land when it came on sale in 1849. In the cemetery’s early days sections were devoted to the major Christian denominations (mainly the Protestant) and one section was set aside for ‘other’ or ‘non-believers’. However in modern times burial plots have not been placed in areas according to religious beliefs.This collection of almost 130 photos about places and people within the Shire of Nillumbik, an urban and rural municipality in Melbourne's north, contributes to an understanding of the history of the Shire. Published in 2008 immediately prior to the Black Saturday bushfires of February 7, 2009, it documents sites that were impacted, and in some cases destroyed by the fires. It includes photographs taken especially for the publication, creating a unique time capsule representing the Shire in the early 21st century. It remains the most recent comprehenesive publication devoted to the Shire's history connecting local residents to the past. nillumbik now and then (marshall-king) collection, kangaroo ground, eltham-yarra glen road, agnes bell cameron, agnes cameron (nee bell), cameron family, edward aubrey haughton, eugene cameron, evelyn florence cameron, ewen hugh cameron, gravestones, jane armstrong, jane bell, jessie agnes haughton (nee cameron), jessie cameron, john donald cameron, kangaroo ground cemetery, neville cameron, simon armstrong, vera cameron, william bell armstrong, wurundjeri

Information from "The AIF Project" Lieutenant Reginald Frank Barratt was born in 1879 in Withington, Manchester, Lancashire, England. Regimental number 2166. 3rd Field Artillery Brigade, Military District 3 and Military District 6. Arrived in Australia in 1903 aged 24. Address was Mount Street, Heidelberg, Victoria. Occupation - Farmer. Enlistment date was 17th August 1914. Served with the 68 Battery Royal Field Artillery during the South African War. Rank on enlistment was Sergeant. Embarkation details - Unit embarked from Melbourne, Victoria on board Transport A2 Geelong on 19th September 1914. Rank Lieutenant - Unit 1st Divisional Ammunition Column. Information from the Roll of Honour - Awarded Royal Human Society Medal for saving three lives from drowning in Orange River during South African War. Wounded at Zillebeke, near Ypres, Belgium. Died of wounds 22nd August 1917 at the age of 38. Buried at Bedford House Cemetery, Enclosure No 2, (Plot 1, R0w F, Grave 23), Zillebeke, Belgium. Panel number , Roll of Honour Australian War Memorial British War Medal - The medal was struck by the Royal Mint, is a silver disc 36mm in diameter with a straight clasp suspended without swivel. The obverse shows Sir Bertram Mackennal's bare headed effigy of King George V facing left with the legend 'GEORGIVS V BRITT:OMN:REX ET IND:IMD - "George V, King of all the British Isles & Emperor of India". The reverse, designed by William McMillan, shows St George, naked on horseback and armed with a short sword, an allegory of the physical & mental strength which achieved victory of Prussianism. The horse tramples on the Prussian eagle shield and the emblems of death, a skull and cross bones. In the background are ocean waves and just off centre near the right upper time is the risen sun of victory. The years 1914-1918 appear on the perimeter in the left and right fields respectively. The watered silk ribbon is 32mm wide with 3mm wide royal blue band, 2mm wide black band, 3mm wide white band repeated in reverse order and separated by 16mm wide orange band. Victory Medal - The medal is bronze disc 36mm in diameter with a winged figure of Victory on the obverse. The reverse has the words 'THE GREAT WAR FOR CIVILIZATION 1914-1918', all surrounded by a laurel leaf. The watered silk ribbon is 32mm wided has two rainbow design with the violet from each rainbow on the outside edges, moving through to a central red stripe where both rainbows meet.The recipients name, rank and unit are impressed on the bottom edge of the medals - Lieut F Barratt AIF

An hourglass or sandglass is an instrument for measuring a defined time and can be used perpetually by simply turning it over immediately the top bulb empties. The clear blown glass is shaped into two equal sized bulbs with a narrow passage in the centre and contains uniform sized sand or glass particles in the lower bulb. The width of the neck regulates the constant flow of the particles. The glass is held in a stand with top and bottom of equal shape and size. Hourglasses can measure an infinite variety of time by gauging the size of the particles, the shape and size of the bulbs and the size of the passage between the bulbs, thus measuring hours or minutes or even seconds. Generally an hourglass sits between discs of wood at the ends, which are joined by long wooden spindles between the ends and tightened by screw caps. The length of time can be adjusted by adding or removing sand particles. The use of the marine sandglass (or hourglass) has been recorded in the 14th century in European shipping. A one minute sandglass was used in conjunction with the ship’s log for ‘dead reckoning’, (see below) that is, for measuring the ship’s speed through the water. They were also used to regulate ringing the ship’s timetable; for example a 4 hour sandglass was used for the length of the sailors’ watch, and a half hour timer for taking of readings for the ship’s log; the ship’s bell would be rung every half hour. It was usually the role of the cabin boy to watch and turn the sandglasses over at the exact time of them emptying their upper chambers and to ring the ship’s bell. Hourglasses have been used historically for many hundreds of years. Some have been used for timing church sermons, in cooking, in industry and at sea. Even today they are used for measuring the cooking time of eggs and timing a player’s turn in games such as Boggle and Pictionary. The sandglasses at sea were gradually replaced in the late 1700’s to early 1800’s by the more accurate chronometers (marine clocks) when they became reliable instruments. DEAD RECKONING (or Deduced Reckoning) Dead reckoning is the term used to describe the method of calculating the ship’s position from its speed and direction, used in early maritime travel, mostly in European waters. Both the (1) speed and the (2) direction of travel were recorded on a Traverse Board at half-hourly intervals during a helmsman’s watch of 4 hours. The navigator would record the readings in his ship’s log, plot them on his navigational chart and give his updated course directions to the next helmsman on watch, along with the cleared Traverse Board. This was a very approximate, but none-the-less helpful, method of navigation. The wooden Traverse Board was a simple pegboard with a diagram of a compass with eight peg holes along the radius to each of the compass points, plus a grid with ascending half hours in the left column and increasing ship’s speed in knots in a row across the column headings, with a peg hole in each of the intersecting cells. A number of wooden pegs were attached to strings on the board. By placing one peg consecutively in the direction’s radius hole, starting from the centre, and the speed holes when the half hourly reading was taken, a picture of speed and direction for the whole 4 hour watch was created. (1) To measure the ship’s speed a one minute hourglass timer was usually used to measure the ship’s speed through the water and help to calculate its longitude. A rope, with knots at regular standard intervals and a weight such as a log at the end, would be thrown overboard at the stern of the ship. At the same time the hourglass would be turned over and a seaman would start counting the number of knots on the rope that passed freely through his hands as the ship travelled. When the timer ran out the counting would be stopped. A timer of one minute (one-sixtieth of an hour), knots spaced one-sixtieth of a nautical mile apart, and simple arithmetic easily gave the speed of the ship in nautical miles per hour ("knots"). This would be recorded every half hour. The speed could however be inaccurate to the travel being affected by ocean currents and wind. (2) To calculate the ship’s direction a compass sighting would be recorded each half hour.Marine hourglasses or sandglasses were used from around the 14th to 19th century during the time of sailing ships. This hourglass is representative of that era, which is during the time of the colonisation of Australia. Hourglass or sandglass; an instrument used to measure time. Two equal sized clear glass bulbs joined with a narrow passage between them, containing equal sized particles of sand grains in lower bulb. Glass sits in a brass collar at each end, in a frame comprising 3 decorative brass columns or posts, each attached top and bottom, using round screw-on feet, to round brass discs. Disc have Roman numerals for the numbers 1 - 12 pressed into their inner surfaces and hieroglyphics on the outer surfaces. Roman numerals on inner surface of discs " I II III IV V VI VII VIII IX X XI XII " Hieroglyphics impressed on outer surface of discsflagstaff hill, warrnambool, shipwrecked coast, flagstaff hill maritime museum, maritime museum, shipwreck coast, flagstaff hill maritime village, great ocean road, horology, hourglass, hour glass, sandglass, sand glass, timing instrument, dead reckoning, deduced reckoning, finding latitude at sea, sandglass with hieroglyphics and roman numerals, hourglass with hieroglyphics and roman numerals, brass hourglass

Form - titled "MMTB Brush Renewals Chart", number 8696 9/36, used in substations to record the renewal of brushes in rotary converters. Allow the wear to be plotted, with renewal dates, details etc. Has been torn on the left edge, possibly from a book and then used as a colouring sheet.trams, tramways, substation, rotary converters, forms, electrical equipment, electrical engineering