28ga . . . I'm not sure. Repros in general with the cartouche on the rib: definitely.

Looking at a bunch of Repros on gunsinternational, it would appear that the only ones with the cartouche on the rib are the 12's. At least I did not see any 20's or 28's so marked.

Last edited by L. Brown; 12/18/13 08:40 PM.