Accession No

3919

Brief Description

moving iron, pointer ammeter by Hartmann & Braun, German, 1/2 20th Century

Origin

Germany; Frankfurt am Main

Maker

Hartmann & Braun

Class

electrical

Earliest Date

1900

Latest Date

1950

Inscription Date

Material

metal (copper, white metal, cast iron, steel); plastic (perspex); paper (card and one other)

Dimensions

diameter 227mm; height 90mm

Special Collection

Provenance

Purchased, 1993.

Inscription

‘Hartmann & Braun
A.-G.
Frankfurt a. M.’ (plate on front)
‘No. 383310’ (dial)

Description Notes

Cylindrical black-painted metal case with part-glazed (perspex) top revealing scale divided unequally 0 - 250, numbered 0, 30, 50, 100, 150, 200, 250; 30 - 250 subdivided to 5. Black-painted pointer moves over the scale.
Copper terminals on underside of instrument. Holes in base for attachment in fixed position.

Condition good; complete

References

Events