General Post Office Type B landline telegraph relay capable of regeneration

Made:
1880-1920
maker:
General Post Office
General Post Office Type B landline telegraph relay capable of

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General Post Office Type B landline telegraph relay capable of
Science Museum Group
© The Board of Trustees of the Science Museum

General Post Office Type B landline telegraph relay capable of regeneration, 1880-1920

Details

Category:
Telecommunications
Object Number:
1998-867
Materials:
brass (copper, zinc alloy), glass and wood (unidentified)
Measurements:
overall: 7.874 x 11.811 x 13.7795 in.; 20 x 30 x 35 cm
type:
relay
credit:
Stewart, Archibald W.