I have a Winchester Model 12, made in 1949 according to the serial number, that I am questioning if it's actually pigeon grade or just Trap grade. It's 30", full choke 12 ga. Great looking shotgun, but it has both the pigeon stamp as well as Trap stamp directly above the serial number. Is it possible this is correct? I know pigeon stamps can be faked and someone else implied the Trap stamp couldn't possibly be factory so I'm confused and hoping someone can help.