General Post Office Type B landline telegraph relay capable of regeneration Telecommunications 1880-1920
Westinghouse signalling relay from the Glasgow Underground Railway, single element vane relay style H2 by Westinghouse Brake & Saxby Signal Company. Westinghouse signalling relay from the Glasgow Underground Railway by Westinghouse Brake & Saxby Signal Company. Signalling & Telecommunications
Westinghouse bell-jar type signalling relays from the Glasgow Underground Railway, by Westinghouse Brake & Saxby Signal Company. Westinghouse bell-jar signalling relays from Glasgow Underground Railway Signalling & Telecommunications
Part-rack, marked B13, of sequence switches No 7011 and associated relays, for Western Electric No 7-A machine switching system, made by Bell Telephone Manufacturing Company SA, Antwerp, 1920-1940 part rack of switches and relays from Western Electric Rotary automatic exchange, 1920-1940 Telecommunications 1920-1940
Double contact relay for automatic block, c.1892. Double contact relay for automatic block Signalling & Telecommunications
Westinghouse bell-jar type signalling relays from the Glasgow Underground Railway, by Westinghouse Brake & Saxby Signal Company. Westinghouse bell-jar signalling relays from Glasgow Underground Railway Signalling & Telecommunications
Westinghouse bell-jar type signalling relays from the Glasgow Underground Railway, by Westinghouse Brake & Saxby Signal Company. Westinghouse bell-jar signalling relays from Glasgow Underground Railway Signalling & Telecommunications
Polarised relay, by Creed and Company Limited, Croydon, Surrey, England, 1945-1948. Used with Morse Creed telegraph equipment. Polarised Relay, for Morse Creed telegraph equipment Telecommunications 1945-1948
