Accession No

3266

Brief Description

stereocomparator, by Cambridge Instrument Company Ltd., with optics by Ross, English, 1940

Origin

England

Maker

Cambridge Instrument Company Ltd Ross [optical parts]

Class

optical; military;

Earliest Date

1940

Latest Date

1940

Inscription Date

Material

metal (cast iron, brass, oxidised brass, at least 3 white metals); glass; plastic (ebonite, ivorine, at least 2 others); cloth; rubber

Dimensions

length 970mm; breadth 730mm; height 1520mm

Special Collection

Provenance

Inscription

‘CAMBRIDGE STEREO
COMPARATOR
B4-1940’ (brass plate on front)
‘Cambridge Instrument Co. Ltd.,
England.’ (top table)
‘ROSS
LONDON NO 116605’ (microscope)

Description Notes

Object 1: Grey-painted white metal base/trolley on rubber feet supports main instrument.
Object 2: Black-painted cast iron base on which are mounted three black-painted tables moving in grooved bars. One table set over the two and moving at right angles to the movement of the lower two. The upper table carries a binocular microscope with magnification up to x4. The lower two tables have glass plates under which aerial photographs can be set, for comparison. Large movements of the table are made by hand, small movements by micrometer screws which have brass scales and ivorine drumhead scales. The photograph plates and the scales are illuminated by lamps.
Black plastic dust cover.
Six large blueprints and one small one, all made in 1938 by the Cambridge Instrument Company.

Complete.

References

Events