Flat irons were also called sad irons or smoothing irons. Metal handles had to be gripped in a pad or thick rag. Some irons had cool wooden handles and in 1870 a detachable handle was patented in the US. The detachable insulated handle was designed to be always cool for ironing. The handle was detachable, so that several irons could be on the stove at one time and the handle swapped between several bodies. This handle appears to belong to a Mrs Potts' sad iron - Reg. No. 1885. This item is an example of an invention that was universally adopted because it meant that users could keep several irons on the stove at one time and the handle swapped when needed. The original Mrs Potts irons had handles made of wood (walnut) and this enabled the user to us the iron without sustaining burns. The item reminds us of the difficult circumstances experienced in their daily routines by the early families in Orbost A wooden handle which has been painted green. The base is made of cast aluminium and is attached to the handle by two screws ( not original). In the base is a hinged piece for attaching to the iron, held to the base plate by a spring and operated by a wooden knob for quick release. A hook holds the handle to the iron.On the base is an indecipherable number.handle sad-iron flat-iron mrs-potts domestic laundry

The first spring balance in Britain was made around 1770 by Richard Salter of Bilston, near Wolverhampton. He and his nephews John & George, founded the firm of George Salter & Co., still notable makers of scales and balances, who in 1838 patented the spring balance. They also applied the same spring balance principle to steam locomotive safety valves, replacing the earlier deadweight valves. https://en.wikipedia.org/wiki/Spring_scale Today, spring scales are very popular with recreational fishers. The ability to weigh things reasonably accurately with a small inexpensive apparatus allowed for the exact weight of items to be ascertained. However, it was not accurate enough to weigh small amounts in ounces or grams.Scale. Has ring for hanging, spring and hook device for weighing. Measures in lbs.Scale of pounds weight.flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village

Established in 1906, Frank Moore soon became well known amongst discerning tradespeople for the quality & accuracy of his tools. The Company was acquired by John Shaw & Son in 1945 & James Neill & Co in 1970. Currently part of the Bower Meteorology UK Group, they still produce superb tools & measuring instruments in Sheffield. The subject item is made from high-grade carbon silver tool steel with the patented 'Firm Lock' joint, that identifies the maker as Moore & Wright.A tool used for external measurement of items made by a maker who patented the "firm lock" jointing system now used on many different types of tools in many different industries. These items are now collectible and quite rare as a result are sought by tool collectors in the USA and UK.‘Firm Joint’ external measuring calipers believed made by Moore & Wright. Impressed into the metal "L A J S" (Probably the owner and company that used the item nothing to do with manufacturing) flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, calipers, callipers, external calipers, outer caliper, pottery tools, masonry tools, glass making tools, external measurement

This small medicine glass has ho manufacturer's or owner's marks. It has no side seams, the base is slightly concave, the embossed inscriptions are inside the glass, the clear glass has slight imperfections and ripples, and the glass is slightly opaque below the lip; these features point to the glass being blown into a mould, partially set, and spun between that mould and an internal mould that had the embossing on it, called a turn-mould process. The lip was then ground to be smooth. The process was patented in 1887 with the title of "Mold for blowing turned bottles".This medicine glass is significant as an example of medical equipment that has a design still used today. It is significant also for having the embossing inside the glass, which was likely produced by the turn-mould method of bottle (and container) making.Medicine glass or dose cup; clear glass with small imperfections and ripples in the glass, no side seams and a slightly concave base. All embossed marks are inside the glass. The imperial measurements are in graduated scales for tablespoons, teaspoons, and ounces and drachmas. "OUNCES DRACHMS" "TABLE TEA"flagstaff hill, warrnambool, shipwrecked coast, flagstaff hill maritime museum, maritime museum, shipwreck coast, flagstaff hill maritime village, great ocean road, medicine glass, measuring glass, dose cup, medicine dispensing, medicine measurement, sambell pharmacy warrnambool, sambell chemist and dentist, internal embossing, glass embossed inside, 20th century chemist, blown glass, two-piece mould, turn-moulded glass, turned bottles

Edgbaston is now an affluent suburb of Birmingham. The relation of the owner, James Griffin, to the donor (a resident of Kew) has not been identified. 'The Gentleman's Magazine' of 1845 contains a reference to the death of Mary, aged 12, at Brighton, the daughter of James Griffin of Edgbaston and of Withymoor Works, Dudley. (p.325). Coincidentally, James Griffin, a manufacturer of Withymoor Works was issued with a patent for his improvements in the manufacture of "spades, shovels, and such like tools" on 5 October 1843. Withymoor Works was owned by James Griffin & SonNineteenth Century leather document wallet that was brought to Australia by James Griffin's descendants.Brown leather wallet with inserted gussets to side and brass plate with lock to front and a fold over flap with brass fitting which clips shut and can be locked and leather double stitched casing to back for inserting a belt with key to lock inside. The owners name is engraved on the clasp."James Griffin / Edgbaston."cases, wallets, edgbaston, james griffin, withymoor works

Beehive smokers douse bees with smoke to calm them and make them less likely to sting while honey is extracted from beehives. They were invented in the mid nineteenth century, prior to which bees were killed in order to extract their honey. The invention of the bee smoker was an important innovation in the history of apiary. The Wodonga Historical Society beehive smoker appears to be of the same design as the patented Woodman’s Bingham Bee Smoker, produced from 1878 by T. F. Binghan of Albronia, Michigan. The Wodonga Historical Society beehive smoker is an important artefact connected to local history, and the history of apiary in Wodonga. Beekeeping was a popular pastime in the late nineteenth and early twentieth century, and apiaries were subject to regulation by the Wodonga Shire Council. At a 1914 meeting of the council, for instance, a by-law governing beekeeping in Wodonga was enacted after Mrs Smyth complained that Mr Bassett’s bees were swarming the watering holes in her paddocks and preventing livestock from drinking. There were areas within the Wodonga township where apiaries were prohibited, and Mr Bassett’s bees had fallen foul of the law. A canvas, wood and metal beesmoker from the early twentieth century. apiary, bees, beekeeping, honey, apiarists, wodonga, council, wodonga council, wodonga shire council, rural, livestock

Used in kitchen to cut carrots, cheese slices, onions. boiled eggs, etc.Painted black guillotine on a wooden stand. An iron pole keeps the guillotine in vertical position at one end of the block. Driven by two wheels when a handle is turned. A tilting beam moves the guillotine up and down to cut vegetables, etc. Blade 18cm long by 6.5cm wide. Metal plate missing under blade. A rotatable drum to contain the food to be chopped, which is rotated by a cog at the base (also missing) turns the container. The upright holding chopper blade e is a modification made because of the missing container.|The following description is from Ken Turner Booklet referred to under 'Reference'. ----|The Starrett food chopper would certainly have to be considered one of the more interesting inventions, which incidentally is now considered the ultimate in kitchen collectables. Laroy Starrett in later years' told of how the design of his food chopper was inspired by the action of the walking beam engine used on the Mississippi steam boats. When the crank handle of the chopper is turned, this sets in motion a mechanism which is just fascinating to watch. The crank activates a flywheel which in turn, by a series of cogs and levers, simultaneously rotates a food holding container and raises and lowers within the rotating container, a guillotine like 'chopping blade - the action does not only look like that of a beam steam engine, it even in a way sounds like one, although somewhat noisier. Starrett produced seven different models of these choppers, ranging in size appropriate for domestic use to heavy duty models for butchers, restaurants and for hotel use. The small model was capable of chopping 3lbs in three minutes, and the largest had a capacity for chopping something like 100 lbs in an hour. The mechanical chopper, which became affectionately known as the 'hasher', was the first of some one hundred of Starrett's inventions, and these include a washing machine patented in 1865 which had a similar action to his food chopper, a food press patented in 1873, and a device for lacing shoes he patented in 1886.domestic items, food preparation

The origins of the pen rack probably began when quill pens were being replaced by steel nib pens that were held at oblique angles for writing this method of writing started to gain popularity around 1820-1860. To understand the development of display racks to hold pens on a desk we need to understand the development of the pen itself. Before the early 19th-century steel pens were almost universally all barrel pens affixed to a holder pretty permanently. Pens were also not disposable. There were even steel pen repair services, just like the same services around at the time to repair you're fine quills. Individual slip nib pens which fit into a holder were originally pieces of a quill which came in a box of nibs and fit into a holder. These were disposable and meant to obviate the need to mend your quills. By 1831 you start to see more what they called “slip nib pens” or “portable pens” (easier to carry than a long barrel pen), but the idea of holding the nib at an oblique angle in the holder was an idea new enough that it warranted a patent. In 1831, an enterprising and very successful stationer and inventor, Sampson Mordan (inventor of the silver mechanical pencil) combined with one William Brockedon to patent the first oblique pen and oblique holder. In the patent application, they mention as the benefits that this would allow the writer to hold the pen more comfortably as well as it should allow the pen to last longer since both tines will be moving across the paper evenly. It appears at the time the idea of holding a pen obliquely was new. As a result of the popularity of the oblique pen many different designs of pen desk holders were being made, to keep pens suspended on a rack alleviated the possibility that the expensive new steel nibs with their holder could be damaged if left in a desk draw with other items.Double sided Pen Rack, decorative metal with four metal legsflagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village

Standard Australian Army servicemans metal pocket knife with three folding implements. It has a single edge knife blade, a can and bottle opener and a marlin spike all hinged to fold away into the knife body. One end of the knife is equipped with a screwdriver blade stub. The other end is equipped with a pivoting copper suspension loop. The body of the knife is stamped with the manufacturer's details, which includes a description of the style of knife as an 'opener', patent number '15737' and a 'D^D' stamp. This knife is wrapped in a waxed piece of paper printed with the instructions for using the can opener blade.The body of the knife is stamped with the following inscription "WITTINGSLOWE, OPENER, ADELAIDE, PAT.APPLN 15737" and a 'D^D' stamp.vietnam, australian, army, pocket knife, opener

This timber fragment is from the shipwreck of the SCHOMBERG (1855). The bow of the ship broke off after an unsuccessful salvage attempt to tow her off the Peterborough reef. At the wreck-site the submerged hull points north towards the beach but the front section is missing. Parts of the bow have been carried away by the eastward bearing ocean currents and have come ashore on the western coast of New Zealand’s South Island. Don Charlwood writes in Wrecks & Reputations (1977) that in 1871 “a piece of wreckage over 20 feet long and 12 feet wide was brought out” by land from its remote location at Tauperika Creek. In 1875 “an even larger section was brought out by sea”. It was suggested at the time that these relics of a large wooden sailing ship were from the wreck of the SCHOMBERG some 20 years earlier on the Victorian coast. “To corroborate the theory”, Charlwood continues, “a piece was sent to Halls of Aberdeen [the ship’s builders in Scotland]. They identified it as having come from the ship they had launched with such pride in 1852.” Charlwood, whose great-grandparents were passengers on the SCHOMBERG’s fateful maiden voyage, acquired some samples of the wreckage timber recovered in New Zealand, and brought them back with him to Australia. In 1976 “comparison was made of timbers from the New Zealand find and timber from the remains of the hull at Peterborough. They proved to be from the same ship.” The extraordinary journey of these pieces of wood from the once mighty clipper ship SCHOMBERG came to an end in 1984, when they were given to Flagstaff Hill by the author, and reunited with other shipwreck timbers and copper bolts from the vessel that are on display at the Maritime Village. The shipwreck of the SCHOMBERG is of State significance - Victorian Heritage Register S612The artefact is a small piece of wood that was broken from the timbers of the shipwreck of the SCHOMBERG (1855) and carried by the eastern currents to New Zealand (1875). It has 2 drilled holes that show faint screw marks and no metallic residue (possibly for patent treenails). The top surface is rounded, of a dark colour, and showing clear grains that have been worn smooth by the action of the sea. There is a reddish stain on the timber where breakage has occurred. The wood appears to have been strong in its original condition but is now light to lift and soft and crumbly at its exposed edges. The artefact is in fragile condition.flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, schomberg, shipwreck timber, don charlwood, ‘wrecks & reputations’

Scalebuoy. Invented by Hartley Abbott & patented under the name of the Bendigo Electronic Company, made in various sizes & for different applications, such as to prevent scaling in the boilers at mines. Made up of a sealed glass bulb containing mercury and gasses enclosed within a chromed wire cage & with a chromed handle. The one shown being a hand held shaker model. Scalebuoy sent to Alan from work colleague, Pat Curran in Tasmania. Pat Curran was working as the CEO of a retirement village and found the scalebuoys in the equipment there. Noting the Bendigo manufacturing logo he decided to send it to Alan. Original owner is not known.Bendigo Electronic Coy Ltd A. C. Scalebuoysciences, instruments - general, scalebuoy

Pittock collection: two metal carpenter's squares for set out * green painted adjustable set out square, with imperial and metric scales, and level bubble, 305 mm L x 120 mm W. Marked Pittock with marker * adjustable set out for full range of angle set out. steel wood and brass construction. Marked Stanley, patented 9-6-04. Tool 204-325 mm L x 25 mm W x 20 mm D Items stored in Pittock box coach builder's box, reference 13000.1.

Camera was originally owned by the owners grandfather and used by him at home and overseas. Later given to his son (donors farther)Brownie Autographic Folding No.2 Camera. Uses 120 roll film. Has a steel inscribing pin for writing on film through window on back of camera to record details. Has a ball bearing shutter - patented in USA, Jan 18, 1910 - Jan 7, 1913. Bellows folds back into camera and can be adjusted to 8,25, or 100 feet from object. Viewfinder can be varied from portrait to landscape view. It has a leather handle - film loaded by opening clip on lower front. Leather carrying case with name of original owner -G.H.Parsons, Melbourne, Victoria, Australia.photography, cameras

A concave wooden racquet with red, black, and gold whipping and stem wraps, and short, leather handle grip. Inscription across base of head on obverse: AEROFLIGHT. Company monogram 'B' situated below on throat. Inscription across base of head on reverse: "BENTLEY"/NIAGARA/FALLS. Decal of company coat-of-arms below on throat. Inscription along right side of stem: MADE IN CANADA, followed by patent details. On left side of stem: SPRING DRIVE SHAFT. Materials: Wood, Nylon, String, Metal, Ink, Glue, Lacquer, Leather, Cloth tape, Adhesive tapetennis

A wooden racquet with green cloth tape over parchment reinforcing, and a deep-grooved handle grip. The parchment reinforcing continues from the shoulders down the throat, creating the outline of a heart shape. Inscription across crown on obverse: SLAZENGERS'. Inscription across throat on obverse: BURKE/SLAZENGERS/PATENT/STRINGING. Inscription along right side of handle: SLAZENGERS' NEW YORK. Inscription along left side: ENGLISH MODEL. Butt cover features Slazenger hexagram trademark with motto. Materials: Wood, Gut, Metal, Glue, Lacquer, Ink, Cloth tape, Leather, Parchment, Stringtennis

A MacGregor Sarah Palfrey Cooke "Personal Model" tennis racquet, with string whipping around shoulders, shaft and handle, and leather handle grip with triangular perforations. Model name features on base of head, on obverse. MacGregor logo features across base of head on reverse. 'M' trademark inside clover device features on throat. Head and neck linear illustration, with signature reproduction of Cooke features on lower shaft on reverse. Inscription along left side of shaft: HALL PATENTED CONSTRUCTION/"THE ORIGINAL LAMINATED RACKET". Materials: Wood, Enamel, Leather, Nylon, String, Ink, Glue, Lacquer, Metaltennis

A MacGregor Frank Parker Championship tennis racquet, with string whipping around shoulders, shaft and handle, and leather handle grip with triangular perforations. MacGregor logo features on base of head, and on plastic butt cover. Model name features on throat. Head and shoulders linear illustration of Parker features on lower shaft on obverse. 'M' trademark inside clover device features on lower shaft on reverse. Inscription along left side of shaft: HALL PATENTED CONSTRUCTION/"THE ORIGINAL LAMINATED RACKET". Materials: Wood, Enamel, Leather, Nylon, String, Ink, Glue, Lacquer, Metal, Plastictennis

A John Holden, Super Holden tennis racquet, with string whipping around shoulders and lower shaft, plastic collar around upper shaft, patterned wood laminations across shoulders, a Fairway leather handle grip, and, a slightly opened throat, with shoulders converging to form the shaft. Inscription across throat, on obverse: SUPER/HOLDEN. Across throat on reverse: JOHN HOLDEN/232 BAKER ST./LONDON. N.W.1. Patent number along right side of shaft. Manufacturers details on butt cover. Materials: Wood, Nylon, Ink, Glue, Lacquer, Metal, Plastic, String, Leathertennis

A Wright & Ditson 'All American' model tennis racquet. String whipping and paint around shoulders and around base of throat. On both sides of racquet, model name and manufactuer name printed across throat. Name of manufacturer and words: 'CHAMPIONSHIP QUALITY' printed on shaft on obverse and reverse. Handle spiral-wrapped withperforated pattern leather hand grip. Leather end wrap held with tacks. Butt cloth with amnufacturer's initials as a logo printed on it. 'PATENT NO 1664466' printed on side of shaft. Materials: Wood, Metal, Lacquer, Glue, Ink, Leather, Nylon, String, Plastic, Cloth, Painttennis

Hand operated Bellows vacuum cleaner. Previously #27 The “Baby Daisy” Vacuum Cleaner is constructed from timber, steel and leather bellows. It has a carry handle fixed to the top. The base is approx. 500mm x 250mm. The height is approx 400mm. On one side is a bracket for a handle (missing) used to operate the bellows. The device is mounted on a foot plate that is split. On one side of the bellows is a circular metal detachable hatch, fixed by wing-nuts. This has a central hole for a tube (missing). Attached internally to this hatch is a cloth dust collection bag. The metal hatch has the following moulded words arranged in a circular fashion. 'DAISY Vacuum Cleaner). There are two brass plates fixed to the side of the cleaner above the hatch. These plates are stamped with 'Rd. No. 518080 and Rd. No. 530353' Gold printed Labels on the side say the following. BABY DAISER Vacuum Cleaner. Registered England. No. 518080/7 No. 530353/08 Trade Mark No.294851 /07 Designs France No. 25469/08 Germany No. 330219 / 08 Further Patents applied for. In the centre of the label is a picture of a Daisy Flower. With the words Iles Patent. This is surrounded by a ribbon with the words. 'The Daisy Registered Trade Mark'. On one side near the base of the cleaner the number '7749' is stamped into the metal.fBaby Daisydomestic equipment, cleaning, vacuum cleaner

The item was part of Jack Grintons film processing. This one he bought after the War. He served as No 1043, 38th Batt AIF 1916-19. Part of the Grinton collection which included hundreds of negatives and developed photos that he took during the war. In England prior to France he spent many evenings processing his own photos. Refer Cat No 1280 for service details. Refer 1317P, 1320P, 1321.Wooden box with lid, three spools and two handles for winding film.On lid: "Made by Eastman Kodak, Rochester. NY USA. Patents: August 3 1902, May 21 1907. May 23 1905, Sep 17 1907. Jun 1908. 3 1/2 inch ODEL-B-2"photography-processing equipment, containers - commercial, grinton

An example of the innovative winged keel design based on the Australia 2 yacht (Americas Cup winner 1982). The Star Fin was a collaboration between Australian pro surfer, Cheyne Horan, and Australia 2 fin designer Ben Lexcen. Horan won 1984 Bells Beach surfing festival riding a board using this fin design. This fin design represents a radical departure from surfboard design thinking at that time (early 1980s) Most people were concentrating on multi fin designs Mark Richards with high performance twin fin designs, then Simon Anderson's 3 fin 'Thruster' design. Cheyne Horan employed the talents of innovative yachting designer Ben Lexcen (who designed the Americas Cup winning Australia 2) to design a unique Star Fin which would provide greater hold for a single fin at critical angles. Horan proved the effectiveness of this design by winning the 1984 Rip Curl Pro at Bells beach using a board mounted with one of the Star Fins. The Star fin represents an unusual (for surfing)scientific and innovative design approach. This is a rare and representative item signed by design instigator Cheyne Horan.Cheyne Horan Star Fin. Moulded polycarbonate red Star Fin. Fin is signed by Cheyne Horan with "HAVE A GOOD SURF FROM Cheyne Horan". Manufacturers and makers information embossed on base. Concept by Cheyne Horan Design by Ben Lexcen Patent Pending STAR FIN Made from Lexan Polycarbonate by Star Fin p/l PO Box 1293 Nth Syd Aust.red, star fin, cheyne horan, ben lexcen, winged keel, bells beach surf contest 1984

This style of mask was developed in Britain and began to appear from the 1930s, though original models may have been produced in the 1920s. Various patents for this style of mask were still being filed in the 1960s, so they were used for a considerable period of time. It is possible that the original filter pads for these masks contained asbestos, as they supposedly utilised 'fire proof' materials. Asbestos was already in use in other British respirator masks at this time. Original cataloguing information believed this item to be an eye shield, but further research has indicated that this is not the case.Mask consists of a metal plate designed to cover the lower half of the face. There is a recess along the top edge of the plate designed for the nose to sit in. There is a large oblong opening with rounded corners at the centre of the mask, which is a mouth opening to assist speech and is the main air intake. There are five round holes on either side of the mask, likely included to decrease the mask's breathing resistance for the wearer. Rounded slots at each edge of the mask are threaded through with an elastic strap, used for attaching the mask to the face. This mask would have been used with a filtering pad attached, but the pad is missing.

Graham MASTERS, Sweenies Creek Pottery Potter Graham Masters was based at Sweenies Creek outside Bendigo. He specialised in a patented technique of low relief stoneware depicting Australian animals and landscapes. He obtained a Diploma of Art and Design in Ceramics from the Bendigo Institute of Technology in 1973, then operated a pottery for a year in Bendigo before becoming an employee, then a partner at Maldon Pottery with Neville Wilson and Thomas Metcalf. Masters left Maldon to set up his own pottery at Sweenies Creek in 1984. A stoneware plate commemorating the 125th anniversary of the Shire of Strathfieldsaye. It features the Shire Hall and courthouse, with gum trees to the left.graham masters, sweenies creek pottery, shire of strathfieldsaye, strahfieldsaye shire hall, anniversary

Formal certificate outlining Promotion of V.H. Evans, No 418655 RAAF to Officer Rank. Signed on 23 Oct 1945 but backdated to 1st Sept 1944. From the Governor General and signed on his behalf.Heavy white paper. Fold mark in middle and stamp imprint on bottom left corner. A little dirty around edges. Style of writing, form with gaps left for unique date (name & dates) to be filled in. Blank on other side.Note on side stating record entered in Register of Patents No.177 P.118 on 12th Feb 1946. Form has imprint of Official Commonwealth of Australia stamp in bottom left corner. Signature at bottom of form. An address noted in pencil on back.promotion, officer, raaf, ww2

Valve has wooden (possibly mahogany) display stand.On glass: “Marconi Valve, patented, Made in England Cat.2 67.5” Detached accompanying label (partially torn): “Valve Type - CAT 2, Serial No: 575 Anode? For: 5.0 Amp Emission: 9? Operate filament A? 19.2 volts 51. ?”

Although Lee DeForest invented the triode vacuum  in 1906, it was not employed in hearing aids until 1921. The first hearing aid using a vacuum tube was purported to have been made by Earl C. Hanson. He called his hearing aid the Vactuphone. It used one small peanut tube (below right) to amplify the output of a carbon hearing aid. The Globe Hearing Aid Company and Western Electric collaborated to manufacture the Vactuphone. By the early 1940s, Raytheon had developed miniature vacuum tubes. It was these miniature vacuum tubes that made body-worn hearing aids a reality. Unfortunately, the power requirements of these aids made it necessary to use two relatively large batteries—an "A" battery to power the filaments of the vacuum tubes and a "B" battery to supply the high-voltage for the plate current. The batteries were worn external to the hearing aid itself and the name "Two-piece" hearing aid was used to describe them. Until about 1945 "Two-piece" hearing aids were the norm. However, improved vacuum tube design reduced current requirements. As a result, battery manufacturers were able to reduce the size of the batteries used in hearing aids. At the same time, electronic components were also being miniaturized. This allowed the hearing aid manufacturers to design hearing aids with internal batteries. After 1945, these "One-piece" hearing aids quickly replaced the more cumbersome "Two-piece" hearing aids. With continuing improvements in both batteries and components, hearing aids continued to reduce in size until 1953 when the vacuum tube was suddenly supplanted by the transistor.Fawn plastic hearing aid with metal clip on back and wires leading from the bottom. Made in the USA, sold by Angus & Coote as the Sole Australian Agents. The Model is the Sonotone 700. Two dials one on each of the top corners."ANGUS & COOTE/Sole Australian/Agents/C D C" Printed in black on the back, top left hand corner. "SONOTONE/700/SERIAL NO/843218/MAD IN U.S.A./SEE PATENT NOTICE/IN INSTRUCTION BOOK" imprinted on back, centre middle.deaf children australia, hearing aid, sonotone hearing aid, sonotone 700, angus & coote