I have a whole set of these in various sizes. I think I found them in the garage of an abandoned house about 30 years ago. The one piece looks like a transfer punch but I have never been able to figure out what the die is for. Some kind of dimpling die? My brother-in-law and I decided it is a muffler bearing installation tool. I'm SURE some of you will know what this is in about 30 seconds. The winner will receive a weekend for two at a chicken ranch in El Cajon. Shit, I'm not sure this is in the right forum...or if there is a right forum.