Weight of fuse holder, 272 grams, and the fuses weigh in at 131g giving a total weight of 403g.
GPO KEYSENDER No. 5 (KEYCALLER) For GPO TELEPHONE EXCHANGE?
6 Vintage GPO & PO Isolation Spanners Post Office Telephones exchange tools
GPO PO Exchange earth bar for small UAX, solid copper with solder lugs.
GPO UAX13 Strowger Exchange - Machine, Pulsing and Ringing No. 2A
Dutch Post Service photo WW2 Arnhem Blockhouse Telephone exchange workers
