Manufactured circa 1941. Red bead front and steel bead mid sights on the concave matte solid rib, choked WS-1/WS-2, 2 3/4 inch chambers and ejectors. The left rear barrel is marked "WINCHESTER - 16 GAUGE/2 3/4 CHAM." and the underside of each barrel is marked "WINCHESTER PROOF STEEL", "WS-1" on the right and "WS-2" on the left. The matching serial number is marked on the upper tang, forearm hardware, forearm wood and left side barrel flat. The Winchester oval proof is marked on the water table and barrel flats. The water table is marked with the three line U.S. patents on the right side and "MADE IN U.S.A. MODEL 21" over the two line address on the left side. Just ahead of the trigger guard is marked "SKEET". Blue finish, single trigger with gold selector button and a tang mounted manual safety with gold filled "SAFE". Mounted with a checkered walnut beavertail forearm and pistol grip stock with a hard rubber Winchester grip cap and checkered bare butt. Length of pull is 14 inches.