The real question is if it's really "the" gun or not. There are quite a few things about it that don't lend themselves to the facts that are known about the original. It's a Fox, not a Becker, it was just made when Becker worked for Fox and he bored the tubes. Why would Fox allow him to put his name on the barrels when they didn't on any of the others he bored for them when employed there? That's just one point, there are others....

Destry

Out there at the crossroads molding the devil's bullets. - Tom Waits