Relays for controlling Signal and Points
The interior of Parsons Mead IMR {integrated machine room} showing the 1950's style glass Westinghouse relays, there are at least 5 separate style, which are pictured below in detail.
Westinghouse 1950's style glass relay for lever No 5 Lock Relay {5 LR} operates at 100V AC
Westinghouse 1950's style glass relay for lever 16 Normal Relay Lock Proving Relay (STYLE-F3-12V-DC)
Westinghouse 1950's style glass relay for Point Indication {WKR} operates at 110V-AC
Westinghouse 1950's style glass track circuit relay for 'L' Track Relay {L TR}
Westinghouse 1950's style glass relay for lever 17 which is a 30 second timer relay {17 JR}