This blue 4" Heavy Duty double action 38 special was made in 1956-57. It retains at least 93-95% high polish original factory finish in the original matching gold box (lots of wear on box.  Action locks up like new as is the bore. Diamond checkered grips are excellent. All the case colors on hammer and trigger.  One grip is stamped 154724 while the serial number on gun is S154807 One of the finest duty 38 specials ever made.