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History of Science Museum

Three-Position Switch, by Griffin, London, Early 20th Century

Inventory Number 40839


Acknowledgement: © History of Science Museum, University of Oxford, inv.40839

Item type
Object
Makers
Griffin
Provenance
Presented by the Marconi Corporation.
Primary inscriptions
"GRIFFIN / GRAMME / STANDARD / LONDON" printed on celluloid plaque upon upper surface of base.
Object type
Radio communication
Dimensions
Height: 50mm Width: 126mm Depth: 125mm
Inventory No
40839
Accession Number
2004-9/497

Description

Three-Position Switch, with assorted lacquered brass components and ebonite disc on mahogany base. Brass components include four terminals and handled three-position switch upon ebonite disc base. Previously catalogued with Onwood's Patent Ohmmeter (Inv. Num. 95036), Carborundum Detector (Inv. Num. 90595), 'Marconi' Ammeter (Inv. Num. 62660), Small Coupled Two-Way Switch (Inv. Num. 61022).