Quote Originally Posted by discovery00 View Post
I think it might be a San Marco as you said.
On the barrel it has SM BLACK POWDER ONLY .44 MADE IN ITALY
There are the proofing marks PN with a star above and another that looks like crossed muskets with a star above.

Thanks
Yup, ASM or simply SM - Armi San Marco. The company has long gone out of business, but you can get most replacement parts from Dixie Gun Works over in Tennes.

tac