SO.PAC.CO. double embossed on dustcover and backstrap. FREIGHT factory stamped on shackle. Massive, 25% larger than switch, no key.


Southern Pacific Co. FREIGHT,Slaymaker feintly on shackle. padlock. Hardest to find of the 4 locks that predate Harriman common standard. SPCo switch, 300, 72 and this massive 25% larger than common switch lock. Key available on this website.