311

Question
sorry forgot to tell you it is a 410

Answer
Don,

What you have is a variation of Savage/Stevens basic double barrel hammerless shotgun. These are rather plentiful as Stevens produced quite a few 311s in many variations. Stevens' "usually" have a date code behind the hinge pin or ahead of the triggerguard on the bottom of the frame that is represented by a small circle containing a number and letter - A=1949 up to V=1968. The Proof Tested is not an accepted proof as American firearms proof testing is voluntary and therefore not sanctioned or controlled by a governing body. The individual companies set their own criteria for testing so there most likely is little uniformity from mfgr to mfgr.

This is about all the info I have...hope this helps.

Doug