Dave, thank you again. It is just what always comes up online when I try to find anything on Petcairn. Bill Patton, very much appreciated, and will patiently await your reply upon your return, a safe journey for you sir! JTR, John, Many thanks for the Gardner reference! I really need to get a copy of that book! "Another find" well, yes, but with my limited knowledge and lack of good precise research material, I'm doing my "homework" before any acquisition comes about. This is a new ball game and I am kind of unsure if I want to play in this one. The potential History here has really perked my neck hairs on these! I will add that this pistol is just one of a pair. The other, while not an exact match, is a bit fancier with just an engraved set of initials on the lock plate. "A C". I speculate perhaps, Alexander Campbell. ? ? I did find some good info on this sword. I hope I am not treading on forum taboo with this, but an old book has been brought to my attention.