I found this one today with 4" jaws, marked $98, but I got it for $50. Had to make a new spring for it and wire wheeled it. It works great, except it doesn't close completely. I think I just need a bigger washer on the end, but these are the ones it came with. If anyone knows of another way, let me know, because it looks complete. The only markings on it is a "42" on one of the jaws.
This one I found about a week and a half ago for $20. I had to make a new mount, spring, and handle for it. It's got 6" jaws, so I didn't complain. The only markings on it is "100" on one of the jaws.
The pictures aren't that great, but if anyone can tell me anything about them, I'd like to hear it. They're both keepers and I'm sure I'll get a lot of use out of them. :)