Fault analysis equipment for British Post Office Monarch 120 system digital PABX (private automatic branch exchange)
1980-2000
British Post Office Monarch 120 system digital PABX (private automatic branch exchange) equipment cabinet
1980
Operator console for British Post Office Monarch 120 system digital PABX (private automatic branch exchange)
1980
Synchronised remote control unit for broadcast receivers
circa 1939
Synchronised remote control unit for broadcast receivers
circa 1939