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Tricks with Sticks puzzle

Mathematics

1950

Tricks with Sticks, made in 1950

Experimental model of 'clicker' aid to blind people

Acoustics

1949

Experimental model of an aid to blind people known as the "clicker".

British Railways horse carter's jacket

Railway Uniform & Costume

1950

Jacket, British Rail, Horse Carter c.1950.

locomotive nameplate - sir vincent raven

Locomotives and Rolling Stock Components

1949

Locomotive Nameplate, British Railways, "Sir Vincent Raven", ex Peppercorn A1 Class, No. 60126, built April 1949, named August 1950, Doncaster Works No. 2042, withdrawn January 1965.

Prints showing the recording of the tracks of atomic particles, in electron-sensitive photographic emulsions

Nuclear Physics

1950

Mounted black and white photographic print (1 of 24) with matching ink hand-drawn diagram, showing the recording of the tracks of an atomic particle, in electron-sensitive photographic emulsions, (Cat. No.72e) unsigned, British, 1950

Prints showing the recording of the tracks of atomic particles, in electron-sensitive photographic emulsions

Nuclear Physics

1950

Black and white photographic print (1 of 24), showing the recording of the tracks of an atomic particle, in electron-sensitive photographic emulsions, unsigned, British, 1950

Prints showing the recording of the tracks of atomic particles, in electron-sensitive photographic emulsions

Nuclear Physics

1950

Mounted black and white photographic print (1 of 24), showing the recording of two tracks of atomic particles, in electron-sensitive photographic emulsions, (Cat. No.72a) unsigned, British, 1950

Prints showing the recording of the tracks of atomic particles, in electron-sensitive photographic emulsions

Nuclear Physics

1950

Mounted black and white photographic print (1 of 24), showing the recording of the tracks of an atomic particle, in electron-sensitive photographic emulsions, (Cat. No.72d) unsigned, British, 1950

Prints showing the recording of the tracks of atomic particles, in electron-sensitive photographic emulsions

Nuclear Physics

1950

Black and white photographic print (1 of 24), showing the recording of six tracks of an atomic particles, in electron-sensitive photographic emulsions, unsigned, British, 1950

A Technico grade B Burette, with interchangeable g

Experimental Chemistry

c. 1950

A Technico grade B Burette, with interchangeable glass stopcock, with 10cc capacity graduated to 0.02cc. This burette is stained brown because it was dedicated to the use of potassium permanganate solution.

Champs Elysees

Photographs

1949

Silver gelatin print 'The Champs Elysees by night' by Brassaï, 1949 for the Focal Press Publication 'Camera in Paris'.

Fiacre Montparnasse

Photographs

1949

Silver gelatin print, 'Fiacre Montparnasse' by Brassaï, 1949 for the Focal Press Publication 'Camera in Paris'.

A glass vial containing 25gms of biological stain,

Experimental Chemistry

c. 1950

A glass vial containing 25gms of biological stain, Light Green, made by BDH Ltd.

Jinx Clark and unidentified man

Photographs

1949

Silver gelatin print, by Andre de Dienes. Jinx Clark and an unidentified man play in the surf at a beach in Loas Angeles. Alternate shots from this photo session were published in Popular Photography, November 1949. Photographer's stamp on verso.

McVitie Weston valve collection, valve, type CV188

Electronic Components

-1949

Valve, type CV188, (RMW/Y351 - McVitie Weston number), by Unknown maker.-1949

McVitie Weston valve collection, valve

Electronic Components

1949

Valve, (RMW/Y396G - McVitie Weston number), by Unknown maker, 1949.

McVitie Weston valve collection, valve

Electronic Components

1949

Valve, marked 9.12.49, (RMW/Y396B - McVitie Weston number), by Unknown maker, 1949.

McVitie Weston valve collection, valve

Electronic Components

1949

Valve, marked 9.12.49, (RMW/Y396A - McVitie Weston number), by Unknown maker, 1949.

German Model GHH Werk Sterkrade friction prop

Coal Mining

1950

German Model GHH Werk Sterkrade telescopic friction prop (yielding) and 2 link bars, a yielding arch foot (supporting shoe) and 2 miscellaneous pieces, 1950.

'Glockner' automatic stop-cylinder press

Printing & Writing

1950

printing press, 'The Glockner' automatic high speed cylinder printing press, with integral feeders and motors, 1950 manufactured by Frank F. Pershke Ltd., Enfield, England

Microscope with travelling slide, by Hilger (seria

Experimental Chemistry

1950

Microscope with travelling slide, by Hilger (serial no. H 481. 303/50253)

"Recordon" magnetic recorder, licensed from Thermionic Products, c.1949

Sound Reproduction

1949

"Recordon" magnetic recorder, made in France under licence from Thermionic Products, c. 1949.

Wooden headboard 'The Welsh Dragon', British Railways - London Midland Region

Locomotives and Rolling Stock Components

1950

Headboard, British Railways (London Midland Region), 'The Welsh Dragon' wooden, surmounted by dragon, Prestatyn to Llandudno, 1950-c.1960.

Ferranti Transformer

Electricity Supply

1950

Ferranti quadrature voltage transformer.

component kit for sealing semi-conductors

Electronic Components

c. 1950

Kit of parts for making glass to metal seals in semi-conductors. c.1950

circuit element

Electronic Components

c. 1950

Circuit elements for MIC balanced mixer - three circuits set on card for display purposes.

vx3282 and vx3289 mixer diodes

Electronic Components

c. 1950

Military specification mixer diodes - seven VX3282 and five VX3289.

diode display model

Electronic Components

c. 1950

Greatly enlarged model of miniature double ended crystal diode capsule.

Marconi ECL80/LN152 Thermionic Valve

Electronic Components

1950

A Marconi ECL80/LN152 triode output pentode valve, type ECL80/LN152.

Q-band detector diode

Electronic Components

c. 1950

Four examples of Q-band detector crystal diodes. one complete and three sectioned in different planes. c.1950

Telephone lightning and curren

Telecommunications

c.1950

Telephone lightning and current protector made by Associated Electrical Industries Ltd, c.1950

Relay switch

Telecommunications

c.1950

Relay switch made by the Power Equipment Co. Ltd, c.1950

Avro 707C Scale Model

Aeronautics

1949

1:100 Scale model of the Avro 707C aeroplane with display stand.

Diagram showing the variation of frequency and wavelength of characteristic X-rays from various elements

Nuclear Physics

1950

Science Museum photograph mounted on card of diagram showing the variation of frequency and wavelength of characteristic X-rays from various elements, 1950. Taken from paper by H.G.J. Moseley's paper, Phil, Mag, Vol 27, pp703-713, Fig 3. (1914)

Centrifuge Plate

Nuclear Physics

1950

Circular stamped metal plate, with round and wedge shaped holes, for gas centrifuge used for isotope separation, made by H. London, British, c. 1950

Centrifuge Plate

Nuclear Physics

1950

Circular stamped metal plate, with wedge shaped holes, for gas centrifuge used for isotope separation, made by H. London, British, c. 1950

Spectacle case

Optics

c. 1950

Blue case for spectacles, with optician's advice note, dispensed by Crispe the Opticians, Ruislip, c. 1950

Mullard UBC41 Thermionic Valve

Electronic Components

1949

A Mullard double diode triode valve, type UBC41.

McVitie Weston valve collection, STC valve, type 3J/160E

Electronic Components

c. 1950

STC valve, type 3J/160E, (RMW/J159B - McVitie Weston number), by Standard Telephones and Cables Limited, c. 1950.

McVitie Weston valve collection, STC valve, type G180/2M

Electronic Components

c. 1950

STC valve, type G180/2M, marked DOUBTFUL, (RMW/Y298A - McVitie Weston number), by Standard Telephones and Cables Limited, c. 1950.

Artificial leg for above knee amputee, by J.E. Hanger and Company

Orthopaedics

1950

Artificial leg for above knee amputee, by J.E. Hanger and Co, 1950

Member of the British Empire m

Coal Mining

1949

Member of the British Empire medal, awarded to William L Thompson, 1949, with box

diode

Electronic Components

c. 1950

Hewlett-Packard diode 5082-2701 hot carrier. c1950 used for evaluation puposes.

`Velometer' electrical anemometer by Metropolitan-

Meteorology

1950

`Velometer' electrical anemometer by Metropolitan-Vickers Electrical Company Ltd. of Trafford Park, Manchester 17. Marked type 3004, serial no.3866, dated 1950

Ensign Selfix 820 camera guarantee

Photographic Technology

1949

Ensign Selfix 820 camera guarantee. Filled out in biro. Dealer's name Frank Woods. Address 1/3 Waterloo Road, Epsom, Date of purchase 13 September 1949.

Telegraph Cable

Telecommunications

1950

Armoured telegraph cable, made by W.T. Henley's Telegraph Works Company Limited.

Capacitance bridge

Electricity and Magnetism

1950

Capacitance bridge, by H.W. Sullivan, London, no.702/1950, range 30-1000 picofarad

Photographic contact sheet from filming of 'Once a Sinner'

Photographs

1949-11-19

Daily Herald photographic contact sheet by F. Greaves titled 'Filming in Camden Town'. Image 1 shows film crew in Shipton Place, Camden Town, London. Image 2 shows actors Sydney Taffler and Jock Keaton acting out a fight sequence. The film being made is 'Once a Sinner' (1950) starring Pat Kirkwood.

"Davon" direct vision ophthalmoscope, in pigskin c

Ophthalmology

1950

"Davon" direct vision ophthalmoscope, in pigskin case, by F. Davidson and Co., London, c. 1950

Transformer for galvanmeter lamp, type 5147

Electricity and Magnetism

1950

Transformer for galvanmeter lamp, type 5147, serial no. 114429, 230v to 12v, by H. Tinsley and Co. Ltd., London, SE25, England, 1950.