Chargeable-time clock, type 44B

Chargeable-time clock, type 44B

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Chargeable-time clock, type 44B
Science Museum Group
© The Board of Trustees of the Science Museum

Chargeable-time clock, type 44B

Details

Category:
Telecommunications
Object Number:
1985-1282
type:
clocks
credit:
British Telecom. Deptford Telephone Exch