Ruger Security Six, .357 mag. cal. double action revolver.  Serial #156-90452. Excellent condition.  2 ¾” barrel has excellent bore.  Ramp front sight with red insert, adjustable rear.  Barrel and frame have 97% blue with crisp markings.  Cylinder has excellent blue with light index marks.  Ruger walnut grips have excellent checkering, few light marks.  Double action works fine and locks up tightly.  A compact .357 powerhouse! Nice daily carry revolver.