Mercury Switch 303A

Made:: 1945-1955 in London

Mercury switch 303A made by Engel & Gibbs Ltd, c

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Mercury Switch 303A
Science Museum Group
© The Board of Trustees of the Science Musuem

Mercury switch 303A made by Engel & Gibbs Ltd, c
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Mercury switch 303A made by Engel & Gibbs Ltd, c.1950.

Details

Category:: Telecommunications

Object Number:: Y2003.22.120.5

Materials:: metal (unknown) and glass

Measurements:: overall: 92 mm x 84 mm x 134 mm,

type:: telephone component

credit:: Gift of British Telecommunications plc

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Mercury Switch 303A

Details

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