"I'm not much of a Mod 21 fan, but for a 30" 20 g, I'd grab it if the price is right. "
I find no mention of the gauge of the gun Posted.
As other have said, there was a Skeet Grade gun produced in the Pre-War years with has nothing really to do with a gun for SKEET.
Winchester produced two guns for SKEET that were cataloged as such and marked 'SKEET' on the floorplate. The first version had 26" barrels and could be had with straight or pistol grip from stock. The second later version had 28" barrels. Both these guns were choked SK1/Sk2 with Winchesters propriatary choking and were touted not just for SKEET but for upland hunting in Winchester adverts.
If your gun has 30" barrels, it is not a SKEET from stock but as said Winchester would make anything one wanted. The only way to know if original or how modified is a Cody letter.
Serial #, pictures and a much better description would help in evaluation. -Dick
