Rack containing a group of original Keith line switches, installed in GPO automatic branch exchange in July 1912
- Made:
- circa 1912 in Chicago
Rack containing a group of original Keith line switches, with the associated master switch, made by Automatic Electric Company, Chicago, USA (from G.P.O. automatic branch exchange installed in July, 1912)
Details
- Category:
- Telecommunications
- Object Number:
- 1939-225
- type:
- switch
- credit:
- G.P.O. (Alder House)
