Siemens syphon recorder, 1867

Made:
1867
Siemens syphon recorder, 1867

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Siemens syphon recorder, 1867
Science Museum Group
© The Board of Trustees of the Science Museum

Siemens syphon recorder, 1867

Details

Category:
Telecommunications
Object Number:
1970-47
type:
recorder
credit:
GEC-AEI Telecommunications Ltd.