I remember as a kid ALL the comic books seemed to have an ad in the back for learning the trade of being a locksmith. Haven’t seen a comic book in years, so I have no idea if they still do it or not.
I recall the ads about the bent cigarettes and the guy who was always getting sand kicked in his face!
I agree with the other post, call around, see what it takes to get one.
As for your broken key, seems like as long as the shaft of the key was still in the lock you could have operated the lock by using something sticky to grab the part of the key that was still in there. Shows how much I know about such things.
ping to post 17.