This beautiful Single Action Army has well over 75% coverage Rococo style scroll engraving with smooth backgrounds from the Colt Custom Gun Shop. The only surfaces not engraved at the hammer, trigger, and some small lower sections. Even the cylinder flutes and front sight are engraved. This revolver is certainly "D" grade engraved. Only one factory engraved revolver in this configuration with this level of engraving is recorded in the chapter "Factory Engraved Postwar Single Action Army Revolvers, 1956-1979" by Albert E. Brichaux within Wilkerson's book "The Post-War Colt Single-Action Army Revolver, 1955-1975." The one known revolver is listed in the "Unidentified Engravers" list. It is also possible this revolver could be one of the custom grade engraved examples executed by one of the known Colt master engravers. The left side of the grip straps, bottom of the frame, arm of the loading gate, underside of the grips, and front of the cylinder have matching full or partial serial numbers, and the front strap has "COLT ENG." below the serial number. There are no assembly numbers on the frame or loading gate. A Colt leatherette case with orange velvet interior and Colt Custom Gun Shop tag are included.