Ruger New Model Single Six Convertible, .22 long rifle/.22 mag. single action revolver.  Serial #64-77804.  Excellent condition.  Two cylinders. 5 1/2" barrel has excellent bore, ramp front sight and adjustable rear.  Barrel and frame have 98% blue finish with a scratch under the barrel from the takedown rod.  .22 long rifle cylinder is 96% with index wear.  .22 magnum cylinder appears unused.   Ruger smooth walnut grips are in excellent condition.  In maker's red box with manual.   Appears fired very little.  Nice .22 combo outfit!