Accession No

4258

Brief Description

resistance box, by Eck and Brook Ltd., English, 1910-1920 (c)

Origin

England; London; Westminster; 4-12 Palmer Street SW1

Maker

Eck and Brook Ltd.

Class

electrical

Earliest Date

1910

Latest Date

1920

Inscription Date

Material

wood; plastic (ebonite, ivorine); metal (brass, lead); paper; rope (string)

Dimensions

length 471mm; breadth 210mm; height 200mm

Special Collection

Cambridge Instrument Company Collection

Provenance

Donated by the Cambridge Instrument Company.

Inscription

‘ECK & BROOK LTD.
Electrical Engineers
4-12 PALMER STREET
WESTMINSTER, LONDON, S.W.1’ (on ivorine plate on right hand end)

Description Notes

Rectangular wooden box with ebonite top; two brass terminals; four 11-position rotary switches with ebonite handles, each mounted on an ebonite plate; double slide wires with separate terminals mounted on top rear of box; brass slider with lock; linear scale on white paper, 0 to 1 ohm by 0.01 ohm; box sealed with string and lead seal.

Condition: fair (switches corroded, slider bent); complete.

References

Events