The only "Cole" I ever knew that assembled locks was Ted Cole in Pittsburg,Pa. and he passed away before 1980*.It could be someone salvaged some of his parts.He worked with W.G.Sutter of Ruffsdale,Pa. and Sutter made mainsprings out of 1095 for use in these locks and the mechanisms were castings but I have no idea as to who did them or the location of the foundry.Cole had a booth at Friendship
Bob Roller
* Possibly died in the early 1960's