Double current telegraph key

Double current telegraph key, made by Gambrell Bros. Ltd

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Double current telegraph key, made by Gambrell Bros. Ltd
Science Museum Group
© The Board of Trustees of the Science Museum

Double current telegraph key, made by Gambrell Bros. Ltd., Serial No. 2001

Details

Category:
Telecommunications
Object Number:
1968-465
type:
telegraph key
credit:
Baker, R.L.