Vintage 1940s UNION SWITCH & SIGNAL CO Railroad Crossing Relay DN-22A Glass Base For Sale
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Vintage 1940s UNION SWITCH & SIGNAL CO Railroad Crossing Relay DN-22A Glass Base: $115.00
Vintage 1940s UNION SWITCH & SIGNAL CORailroad Crossing Relay DN-22A Glass Basedn-22 A nuteralUN- 256884Serial M20906RES 670 OHMSlast date serviced 1972