bought a couple of
old locks with a screw in key with the ammount of dirt and rust inside the broken one i would recon on them being genuine 
and after some consideration i cut away the damaged one and had to weld the hasp .I had a rough idea of the workings but was surprised at how strong the spring was that releases the hasp by compression when the key is inserted and turned sorry does not seem to allow me to post the internal picture
