This Colt Single Action Army Revolver was manufactured c. 1877 utilizing a condemned barrel and cylinder from government contract Colt Cavalry Model revolvers. The revolver has most of the characteristics of "Condemned Model" Single Action revolvers set forth by Kopec and Fenn on pages 157-158 of "COLT CAVALRY AND ARTILLERY REVOLVERS". The revolver has a nickel plated finish with casehardened hammer. The condemned U.S. contract barrel and cylinder were rejected by government inspectors and subsequently salvaged by Colt and utilized on this commercial production revolver. The barrel has the early script address and hole for the early style ejector housing with round boss. The barrel is fitted with a second style ejector housing with bullseye ejector rod head. The underside of the barrel is stamped with the partial original serial number, "6638" under the ejector housing immediately ahead of the frame followed by the partial serial number "8324". A "C" condemnation mark is stamped on the underside of the barrel. The military cylinder is stamped with the "D.F.C." ordnance sub-inspection marks, a "P' proofmark, and the partial serial number "6191". The military proof, inspection mark, and partial serial indicate that it is a condemned component from a government contract Cavalry Model revolver. The left side of the frame is roll-stamped with the Colt three-line, three-patent dates. "45 CAL" is stamped on the left side of the trigger guard. The assembly number "1861" is stamped on the inside of the loading gate. A Colt "P" sub-inspection mark is stamped in the hammer well. The full serial number is stamped on the bottom of the frame, trigger guard and back strap. Colt Single Action Army revolvers that utilize "condemned" government contract parts are a rare and desirable variation of the Single Action Army revolver.