I have a 12 ga. 27" bbl Stevens 620-A with Poly-Choke installed which I plan to put on consignment soon. Left side is stamped U.S., which I was advised may mean it was used by a military Rod & Gun club (?). Anyway, I have zip idea of a realistic price. Stock is too long for me, + apparently was never trimmed when pad was installed. Nice common walnut though, not like todays stuff. Can anyone provide a ballpark price? Condition is very good or better overall. Many thanks.