Western Union combination Wheatstone relay

Made:
1915
Western Union combination Wheatstone relay dated:- 14.12.1915

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Western Union combination Wheatstone relay dated:- 14.12.1915
Science Museum Group
© The Board of Trustees of the Science Museum

Western Union combination Wheatstone relay dated:- 14.12.1915

Details

Category:
Telecommunications
Object Number:
1968-461
type:
relay
credit:
Baker, R.L.