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Four cylinder aeroplane engine of 35 brake horsepower, example of the earliest type of aeroplane engine built in Britain, built for the Green Engine Co. Ltd, by the Aster Engineering Co., London, 1909
Crystal detector mounted on a bakelite strip, by British Thomson Houston Co. Ltd (B.T.H. Company) England, 1925
Moulded bakelite base, one stage in the manufacture of an indirectly heated 3-electrode valve designed for use as a detector in receivers operated by alternating current, type 354V, Mullard Radio Valve Co. Ltd of London,
Miner's protective helmet, corrugated air vents pattern, "Cool Cap,"made by Siebe Gorman and Co., size 7 1/4.
Loudspeaker, cone type in a circular bakelite casing, Philips of Holland model 2007, c. 1928
Wireless receiver, type 2531 by Philips of Holland, mains operated with four valves, and in a bakelite case
One of four items of telephone speaking clock equipment - a rack-mounting frame with a photocell amplifier, power units, etc., 1936
Portable radio receiver, in a carrying case, made by the Zenith Radio Corporation of Chicago, U.S.A. about 1939, with the model name Trans-Oceanic
H2S Indicator Unit, Design 1, AP 5423, serial number CL106, for radar navigation and blind bombing, developed for the RAF in 1942
Television receiver, Bush type TV22, brown marled bakelite case and circular-face cathode ray tube, by Bush Radio, 1950s
Princess hand held domestic hair dryer of mottled brown moulded bakelite, made in England, c. 1939