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S.215 dummy valve, 1920-1929

1920-1929

Amplifying valve type V24, 1920-1922

1920-1922

Novelty crystal radio set, 1925-1930

1925-1930

K.L.1 ungettered valve, 1920-1927

1920-1927

Photographic contact sheet from filming of 'Something Money Can't Buy'

1952-03-13

Key for the Model 25-7D Master clock with special dial

1950-1959

Portions of Ronalds' electrostatic telegraph, 1816

1816

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

24 gallstones with smaller fragments, 53/2512 b, c & d (Box 29), Hammersmith

24 gallstones with smaller fragments

before 1986

Piece of gallstone, 15/2276 (Box 29), Hammersmith

Piece of gallstone

before 1986

Piece of gallstone, 7/915 (Box 29), Hammersmith

Piece of gallstone

before 1986

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

1 gallstone and 1 piece of gallstone, 57/2514 c & d (Box 29), Hammersmith

1 gallstone and 1 piece of gallstone

before 1986

25 gallstones, 39/2445a (Box 29), Hammersmith

25 gallstones

before 1986

Piece of gallstone, 22/2328 a & b (Box 29), Hammersmith

Piece of gallstone

before 1986

Piece of gallstone, 6/2253 b, c & d (Box 29), Hammersmith

Piece of gallstone

before 1986

2 gallstones, 1 piece of gallstone and smaller fragments, 23/2328d & 2329 (Box 29), Hammersmith

2 gallstones

before 1986

2 pieces of gallstone with smaller fragments, 19/2322 (Box 29), Hammersmith

2 pieces of gallstone with smaller fragments

before 1986

2 pieces of gallstone, 30/2393 (Box 29), Hammersmith

2 pieces of gallstone

before 1986

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 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

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 by International Time Recording Company Limited, and key

Model 25-7D Master clock with special dial by International Time Recording Company Limited

1950-1959

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

Fragments of gallstone, 13/2274a (Box 31), Hammersmith

Fragments of gallstone

before 1986

1 gallstone, 4 pieces of gallstone and smaller fragments, 10/2261 a & b (box 31), Hammersmith

1 gallstone

before 1986

Fragments of gallstone, 31/2403 (Box 31), Hammersmith

Fragments of gallstone

before 1986

3 pieces of gallstone with smaller fragments, 24/2332a (Box 31), Hammersmith

3 pieces of gallstone with smaller fragments

before 1986

Fragments of gallstone, 40/2445b (Box 31), Hammersmith

Fragments of gallstone

before 1986

Fragments of gallstone, 38/2443 a & B (Box 31), Hammersmith

Fragments of gallstone

before 1986

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

6 gallstones and 4 pieces of gallstone, 41/2446 (Box 29), Hammersmith

6 gallstones and 4 pieces of gallstone

before 1986

2 pieces of gallstone with smaller fragments, 28ii/2394a (Box 29), Hammersmith

2 pieces of gallstone with smaller fragments

before 1986

7 pieces of gallstone with smaller fragments, 36/2443 c & d (Box 29), Hammersmith

7 pieces of gallstone with smaller fragments

before 1986

Piece of gallstone, 18/2321 a & b (Box 29), Hammersmith

Piece of gallstone

before 1986

2 gallstones, 5 pieces of gallstone and smaller fragments, 17/2320 a & b (Box 29), Hammersmith

2 gallstones

before 1986

5 pieces of gallstone with smaller fragments, 28/2387 (Box 29), Hammersmith

5 pieces of gallstone with smaller fragments

before 1986

Fragments of gallstone, 26/2334 (Box 29), Hammersmith

Fragments of gallstone

before 1986

Fragments of gallstone, 12/2262 (Box 29), Hammersmith

Fragments of gallstone

before 1986

1 gallstone, 2 pieces of gallstone and smaller fragments, 11/2261c (Box 29), Hammersmith

1 gallstone

before 1986

2 pieces of gallstone with smaller fragments, 4/2170 (Box 29), Hammersmith

2 pieces of gallstone with smaller fragments

before 1986

Fragments of gallstone, 7/2252a (Box 29), Hammersmith

Fragments of gallstone

before 1986

Fragments of gallstone, 1/2167 (Box 29), Hammersmith

Fragments of gallstone

before 1986

10 gallstones, 1 piece of gallstone and smaller fragments, 2/2168 (Box 29), Hammersmith

10 gallstones

before 1986

Fragments of gallstone, 47/2510b (Box 29), Hammersmith

Fragments of gallstone

before 1986

Fragments of gallstone, 49/2511a (Box 29), Hammersmith

Fragments of gallstone

before 1986

Fragments of gallstone, 50/2511b (Box 29), Hammersmith

Fragments of gallstone

before 1986

5 pieces of gallstone with smaller fragments, 59/2516 (Box 29), Hammersmith

5 pieces of gallstone with smaller fragments

before 1986

2 pieces of gallstone, 55/2513a (Box 29), Hammersmith

2 pieces of gallstone

before 1986

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