Argo, because of the angle of the photo, I can't tell whether that's PT or FT. Almost looks more like FT to me. (For that matter, are we sure that the last letter is a T? Doesn't look like the T's in St.Etienne below.) And what's the M doing in front of Serre? Given the "a St Etienne" below, it would seem likely to have something to do with who made or sold the gun in St. Etienne. But it does not make sense as a name, although M is the common abbreviation for Monsieur. But that isn't something you see on guns, and what follows still doesn't make sense. Yet another of those mysteries, I think.

Last edited by L. Brown; 08/12/17 11:35 AM.