This is a vintage J.C. Higgins Model 20 pump-action 12-gauge shotgun, marketed by Sears, Roebuck and Co. under the production code 583.2002. It features a classic blued steel receiver, a smooth-sided walnut stock with a ventilated rubber recoil pad, and a ribbed wooden slide handle. The barrel markings indicate it is "Proof Tested," equipped with a fixed Full choke, and specifically chambered only for 2 3/4 inch shells. Designed with a clean, plain barrel and a solid under-tube magazine, this robust firearm is a well-preserved example of a mid-20th-century American field gun.