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History of Science Museum

Rotational Speed Indicator and Case, by Elliott Brothers (London) Ltd., c.1920

Inventory Number 13114


Acknowledgement: © History of Science Museum, University of Oxford, inv.13114

Item type
Object
Provenance
Presented by the Marconi Corporation in 2003.
Primary inscriptions
'ELLIOTT / SPEED INDICATOR / NO. 25391 / ELLIOTT BROTHERS / (LONDON) LIMITED.'
Physical material
Metal
Glass
Silk
velvet
Object type
Electronic instrument
Dimensions
Diameter: 80mm Height: 82mm
Inventory No
13114
Accession Number
2003-11

Description

Rotational Speed Indicator, by Elliott Brothers (London) Ltd.. Indicator is encased in a metal cylinder with a dual scale. Indicator is stored in a leather case with metal clasp, velvet fitting and silk? lining to lid. Also stored in case is two metal fittings.