Im going to be selling these for a customer of mine. I have some info from each gun.(I have yet to see them but will get some pics soon.) I will give you the info he gave me and maybe you can help me Identify these. (FIRST). 44 cal. Black Powder. Made in Italy? Serial #51. U.S. 1847 Marco stamp(star or shield markings) XX7. Model USMR Patent H-051. JANA Cylinder Carvings. Men on horses. Trigger Etched. (SECOND)Matching Set 36 or 38 CAL. Black Powder.16th May 1843 PR Italy on Cylinder with Carvings of 4 ships Sails, flags AE, PN, STAR? Serial # L-7645 on all. I will try to get pictures ASAP.. Any Help would be great.. Thanks.