Tester No. 106 heat coil and fuse

Tester set No. 89A, 1931

1931

Telephone Repeater Rack

circa 1960

Switchboard operator's breastplate headset

Switchboard operator's breastplate headset

Tester No 89A, c.1930

Electric motor commutator 'cleaning stick'

Echo Suppression Rack

1960