I have at least one big clay target box full of old shotgun reloading tools, mostly roll crimpers in various gauges. It seemed that at least one of them "followed me home" from each one of our local gun shows since they are still relatively inexpensive and make great antique display items to go along with my other shooting related collectibles. (I have a collection of about 70 + glass target balls from the late 1800's that were used for shotgun target shooting before there were clay targets.) It's surprising how much variety there is in the old crimping tools, both in design and colours. I've used many of them to roll crimp shotgun shells, mostly BP loads to shoot in old short chamber Damascus guns. I have one old 12 gauge roll crimper that that broke apart where the cast frame clamps to the bench and I plan to tear it apart and adapt a spindle to the crimp head so that I can use it in my drill press.