Smith & Wesson Model 38 No-Dash double-action revolver in .38 Special CTG. Serial number- J648130. Introduced in 1955 as the Airweight Bodyguard, later known as the Model 38, this J- frame revolver is aluminum-framed, has a carbon steel barrel, a carbon steel cylinder with a five-round capacity and a shrouded hammer design. This was a departure from S&W's usual procedure in that the alloy-framed version came first. It is chambered for .38 Special and available with 2" barrel standard. Although a 3" barrel was offered, it is rarely encountered. The frame of the Model 38 is extended to conceal and shroud the hammer, but at the same time allows hammer to be cocked by the thumb. This makes this model an ideal pocket revolver, as it can be drawn without catching on clothing.