Classic Model 12 in 16 gauge.  It has a 28" full choked barrel.  Not pristine, but it very good shape, no polychoke and still has the original Winchester butt plate, no one cut it off to install a recoil pad which is so often the case.  Gun works well, I have shot several rounds of trap with it, no functioning problems at all.  

According the the Winchester site, serial number puts it as manufactured in 1941.

Dove season is right around the corner, hit the field with a classic this year.  Ask any questions you may have.