This is a late WWII production trench shotgun that was produced by the Winchester Company and is in unaltered condition. The serial number of this model indicates production was probably in 1944 and was just before the Winchester factory switched from a blued to the parkerized style finish. The left rear portion of the barrel is marked "MADE IN NEW HAVEN CONN. U.S. of AMERICA, WINCHESTER, MODEL 12 -12 GA 2-3/4 CHAM "over" CYL". The top rear portion of the barrel has the Ordnance Bomb proof, and the corresponding circled "WP" Winchester proof is on the barrel and receiver. The right side of the receiver has been roll marked with the correct "U.S." and Ordnance Bomb proof. The bayonet lug/heat shield is the correct four hole version that is marked with a single "W" proof on the left side of the lug. The stock and pump handle are both made of walnut, and the left side of the stock has a boxed "G.H.D". over the crossed-cannon cartouches. The lower barrel extension and receiver have matching numbers, and it is complete with a British style green web sling and a M1917 Remington marked bayonet, and British Enfield M1905 scabbard.