1834: Smith & Wesson Model 642 Airweight Centennial in 38 Special + P with 1 7/8" Barrel. This little double action only revolver is built on the small J-Frame, and it features a 1 7/8" stainless steel barrel, aluminum alloy frame, stainless steel cylinder, black checkered combat grips, hammerless, satin stainless finish and fixed rear sight. These are extremely popular carry revolvers and this on is in very good condition. Estimated Value: Low: $500 High: $600