Accession No

6171

Brief Description

decibel meter, by General Electric Company (G. E. C.), English, mid-20th Century

Origin

England

Maker

General Electric Company

Accession No

0487 (?)

Brief Description

boxwood rule, 17th century

Origin

Maker

Accession No

6173

Brief Description

four stamps issued in 1989 to commemorate the 150th anniversary of the Royal Microscopical Society, on 1st day cover, by Royal Mail, issued by Cambridge Instruments Ltd., English, 1989

Origin

England; Cambridge; Clifton Road

Maker

Royal Mail Cambridge Instruments Ltd. [issuer]

Accession No

3863

Brief Description

print, magazine page showing Edison speaking through a phonograph, from the Illustrated London News, 1888

Origin

London; England

Maker

Illustrated London News

Accession No

2094

Brief Description

calculator by the Deutsche Rechenmaschinenwerke, c.1950

Origin

Leipzig; Germany

Maker

Deutsche Rechenmaschinenwerke

Accession No

1535

Brief Description

achromatic compound microscope, petrological, “Survey” model, by J. Swift and Son, English, 1920-1925

Origin

England; London

Maker

J. Swift and Son

Accession No

1383

Brief Description

electrostatic voltmeter, Lord Kelvin's patent, by James White, Scottish, 1897

Origin

Scotland; Glasgow

Maker

White, James

Accession No

4529.368

Brief Description

10R electronic pocket calculator, by Microelectronic Product Division, Rockwell International, Mexican, 1975 (c)

Origin

Mexico

Maker

Rockwell International

Accession No

0392

Brief Description

‘The Logarithmicon’ by Yeates & Son, 1899

Origin

Dublin; Ireland

Maker

Yeates & Son

Accession No

2309

Brief Description

Soho type engineer’s slide rule, English, circa 1800

Origin

England

Maker