Accession No

2742

Brief Description

moving coil, pointer microammeter, by Ferranti, English, 1930 (c)

Origin

England

Maker

Ferranti

Class

electrical

Earliest Date

1930

Latest Date

1930

Inscription Date

Material

metal; plastic (bakelite, ebonite); glass; paper (card)

Dimensions

box length 106mm; breadth 81mm; height 54mm

Special Collection

Provenance

Purchased from Christie’s, London, England; lot 70, 12/03/1981.

Inscription

‘MICROAMPERES
RES = 85
FERRANTI
MADE IN ENGLAND
TYPE NO 99P
PATENT No. 285633
No. 112.358’ (on dial)

Description Notes

Metal cylindrical case on bakelite base; glazed window showing silver coloured dial; scale, 0 to 500 divisions; two ebonite covered terminals. In original black cardboard box with hinged lid.

Condition: good; complete.

References

Events