Colt Diamondback, .22 long rifle cal. double action revolver.   Serial #R27596, mfg.1979.  Like new condition. 4” barrel has an excellent bore, adjustable sights. Barrel and frame have near 100% blue, Cylinder is 98% with faint index marks.  Polished hammer is excellent.  Colt checkered walnut grips are excellent.  Double action works fine with tight lock up. Shot very little!   Original Colt packaging shows some wear, but has matching label.  Beautiful .22 Diamondback!