Nice vintage 4 pole GRS signal relay with dual 50 ohm coils. Tested and working however it is missing most of the nuts for the contact studs, otherwise in great condition.
Style General Railway Signal Relay
Type K DC Shelf Relay 53000-137 General Railway Signal Railroad Signal 50-50
General Railway Signal GRS Type B Relay 500 Ω ohm 56001-783-GR2
Vintage General Railway Signal Company Type W Size 2, 54250 AC Relay Pat. 1953
General Railway Signal Type K DC relay 53000-84
