In lightening up a few of the pictures with the information given on the gun, I would say that it is a 1949 era gun. It does have the raised rib, a standard feature then. For a 12 ga gun to have CHAMBERS stamped on it would be something you would see on a 16 ga when it was changed to 2 3/4". Since the 12 ga gun always had 2 3/4" chambers, and I've never seen a 3" chambered FW gun, I don't know why it would have that stamp on it. Also most of the chamber stamping is on the other barrel flat.
I too would like to see what else is written there.
Another good indication of age if the lack of definition around the side plates, there are no raised cheeks surrounding the side locks like there was in the 20's era guns.

Last edited by JDW; 04/28/10 08:11 AM.

David