M.T.9 dummy valve, manufactured by the M-O Valve Company, Hammersmith, London, England, 1920-1929 M.T.9 dummy valve, 1920-1929 1920-1929
80 H.P. Clerget, seven-cylinder, 80 hp, engine no. 1009, W.D. no. 2249. Block tube carburetter from this engine, exhibited with engine details. Built by Gwynnes Ltd. 80 H.P. Clerget 1913
M.T.9.F. dummy valve, manufactured by the M-O Valve Company Limited, Hammersmith, London, England, 1920-1929 M.T.9.F. dummy valve, 1920-1929 1920-1929
Model 25-7D Master clock with special dial by International Time Recording Company Limited, and key Model 25-7D Master clock with special dial by International Time Recording Company Limited 1950-1959
Impulse accumulator No.4028, 1950-1959. It acted to regulate the time of every unit on a Minute Impulse Time System if there was interruptions in the electricity supply to the Master Clock. Impulse Accumulator, for use with a ITR Ltd Master Clock, 1950-1959 1950-1959
The prototype commercial HCN gas laser unit consisting of a discharge tube and thermally stabilised optical system capable of giving 1 mW output in the far infra-red range, 1971. prototype HCN infra-red laser 1970-1972
A black and white silver gelatin photograph entitled "In Rehearsal. Ronald Hynd supports Anya Linden in a pas-de-deux while the rest of the cast snatch a rest. Royal Ballet, Hammersmith, London, circa 1962", by Michael Peto. From the Impressions Gallery exhibition "The Body Electric: An Exhibition of Ballet and Dance Photography, 1859 to the Present Day", shown 7 January - 11 February 1984 In Rehearsal, The Royal Ballet circa 1962
Model 25-7D Master clock with special dial, figures and hands. No.21285,International Time Recording Company Ltd., London, 1950-1959. It was electrically self-winding. The Master Clock was part of a Minutue Impulse Time System, which involved other time recorders which took their time from this one. A Master Clock, Model 25-7 by ITR Ltd, 1950-1959 1950-1959
The International Superelectric Time System. Two electric movements (secondary clocks) model 561-2 with two 6" dials and two pairs 6" hands, made by International Time Recording Co, 1930-1959. They were used in the workplace to regulate time the monitor hours worked. International Superelectric " Supervised" Secondary Clocks, 1930-1959 1930-1959