.22 LR. 6.75" barrel length. SN: 91640. Blued metal finish with bordered checkered walnut thumb rest grips mounting adjustable rear target and matted front blade sights. Concealed hammer action simple blowback operated autoloading pistol fed by detachable single stack magazines. Model mark to the left slide reads HI-STANDARD/MODEL "D" with left frame struck MADE IN U.S.A./THE HIGH STANDARD MFG. CO./NEW HAVEN. CONN./PATENT PENDING/.22 CAL/LONG RIFLE. Item comes in a HI-STANDARD marked black cardboard box with green felt lined wood liner and one magazine.