Morse sounder, 900 ohms, GPO No. 19161

Morse sounder, 900 ohms, GPO No. 19161

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Morse sounder, 900 ohms, GPO No. 19161
Science Museum Group
© The Board of Trustees of the Science Museum

Morse sounder, 900 ohms, GPO No. 19161

Details

Category:
Telecommunications
Object Number:
1971-175
type:
sounder
credit:
Ministry of Defence