Ruger Security-Six Ohio State Highway Patrol Golden Anniversary, .357 mag. cal. revolver.  Serial #159-20146, mfg. 1983 only. Excellent condition.  6” barrel has excellent bore.  Ramp front sight with red insert, adjustable rear.  Barrel and frame have near 100% stainless finish.   Cylinder has 98% stainless finish with light index marks.  Ruger checkered walnut grips are excellent.  Made for the Golden Anniversary of the Ohio State Highway Patrol in 1983.  Left side of frame has Ohio State Patrol insignia and “OPS 4254” numbering.  In walnut presentation case with State Patrol logo on cover.  Cannot have been fired much.