SN: 839875. Made in 1955. 38 Special caliber with a 4” barrel. This gun has 80%n of the original blue finish with pin point pitting on the left-hand side of the gun. Grips are good showing normal carry ware. Action works perfectly. Trigger has a trigger shoe added. The Colt Marshall revolvers were made between 1954 – 1956 with less than 2500 manufactured.