P.O. speakerset (amplifier and loudspeaker unit No. 4), c.1971

Made:
1971
P.O. speakerset (amplifier and loudspeaker unit No. 4), c. 1971

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P.O. speakerset (amplifier and loudspeaker unit No. 4), c. 1971
Science Museum Group
© The Board of Trustees of the Science Museum

Post Office speakerset (amplifier and loudspeaker unit No. 4), c. 1971

Details

Category:
Telecommunications
Object Number:
1971-274
credit:
Astralux Dynamics Ltd.