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History of Science Museum

Photograph (Cyanotype) of a Differential Moving Coil Milliammeter, by Elliott Brothers (London) Ltd., 1920s

Inventory Number 11978


Item type
Object
Provenance
Presented by the Marconi Corporation in 2003. Part of the Elliott Archive.
Primary inscriptions
Intrinsic negative number: 'N.1327.'.
Physical material
Paper
Object type
Photograph
Dimensions
Height: 196mm Width: 152mm
Inventory No
11978
Accession Number
2003-11

Description

In Elliott Archive 2/63/3 (b), blueprint and duplicated typescript pamphlet. Cyanotype from a glass negative of a milliammeter. Vertical format. Pasted inside front cover, which is itself formed of a positive (blue on white) blueprint.