Winchester 12, 20 bore, 2 3/4" chambers, 25" nickel steel barrel choked .020, 6 lbs. 14 oz., 14 1/4" LOP over a Winchester butt plate, 1 3/8" DAC, 2 3/8" DAH, neutral cast. Circa 1916 gun with Model 12 Pigeon Grade wood added that is perfectly matched on both sides. A beautiful gun. Note: the first photo has a good bit of glare which makes the blue look much lighter than it is.