This is a very rare and attractive Colt New Frontier Revolver that according to the included letter from the Colt Office of the Historian is 1 of 25 made by Colt "to determine the feasibility of introducing the .44 magnum caliber New Frontier revolver to the Colt product line." Unfortunately, production of this revolver was not undertaken and the prototypes went into the Colt Archive Collection. Luckily, the prototypes were made available for sale as a unique addition to any Colt collection. Colt advises that this revolver should not be loaded or fired. It had a fixed ramp front sight and adjustable rear sight with "COLT NEW FRONTIER S.A.A. .44 MAGNUM" on the left side of the barrel and the one line address on top. The two line, three date patent information is on the left side of the frame followed by the Rampant Colt, and it is fitted a smooth, non-fluted cylinder and smooth walnut grips with gold Colt medallions.