From a local estate, my old JR. High school homeroom & science teacher had passed. He must have had 100's of them. One is a anvil vise, not sure if it is the same as the 2 broken ones on my list of things to do. These are in the 5-10 pound size.Some one was putting some work into a piece of rr track, that chunk of tool steel? added will make a good anvil.