A uniquely engraved set featuring an late 1946 production Government Model which is fully engraved with matching engraved .22 caliber Conversion Unit.  Both the pistol and conversion unit are nickel plated.  The grips are also fully engraved and feature a steer head on the right and saddle on the left.  Both items are cased in a Colt factory casing.  These cases are fairly uncommon and were used to case the Government Model with .22 caliber conversion unit, as well as the Service Model Ace with rare .45 caliber conversion unit.  This pistol was one of 30 shipped December 17, 1946 with a blued finish to J.S. Oshman Company, 520 Preston Avenue, 4th Floor, Hampshaw Building, Houston, Texas.  Letter further indicates a Special Notation:  30 Conversion Units were also included in this shipment.  A factory case for a conversion unit was also available at the time.