This is a steel body NYCS (New York Central) Railroad switch lock with chain, made by Adlake, patent date 1936. There is no key.
This is #2 of a pair of similar NYCS locks I am listing- take your choice.
The lock body is heavy steel, about 3-1/2" high, total weight about 13 ounces. The drop (keyhole cover) has the maker's name- Adlake- in raised script, an older style. The backside of the lock body is stamped "NYCS" with a long patent number underneath (2040482) that was issued in 1936. The shackle is steel, and on the front side has "2" stamped near the hinge end. Nothing is stamped on the back side of the shackle. This padlock does come with what appears to be an original chain, but there is no key.
This lock came from a RR employee's collection- he is from northern Indiana, where many lines converge going to and from Chicago..
CONDITION- The steel body is rather evenly dark, but not rough from rust. The shackle has had some rust pitting. The chain is still quite smooth, little rust. Because of weight I cannot ship this first class package mail but must send it priority mail; postage is offered at cost..
Check my other railroad keys and locks offered on my Ruby Lane site!