A couple of years ago someone on this site directed me to a list of proof marks. I have since had to move (involved emininte domain and the Ohio dept of transportation so don't ask) and they got mis laid. I picked up an old double hammer with damascas bbls marked Cooper arms on the locks and Belgium on the top strap. Not a bad gun, got it for hunting, and I have a black powder back ground. Would like to know what all the little marks mean.