This revolver is a U.S. contract Model 1860 Army manufactured in 1862 and has the standard markings and features, including matching visible serial numbers. It has more recently been inscribed with "ALFRED DARTE. CAPTAIN, CO. 'M'/-4TH PENNA. CAVALRY" in large letters on the left side of the barrel along with a small "H8" above the wedge. Alfred Darte Jr. rose from a private in the 25th Pennsylvania Volunteer Infantry to captain of Company M of the 4th Pennsylvania Cavalry during the Civil War and was wounded in hand-to-hand combat at Trevillian's Station in 1864 and subsequently honorably discharged and was a lawyer and judge after the war. Included with the revolver is a January 14, 1986, dated Mexican federal registration card identifying the revolver by serial number as registered to "LOPEZ PORTILLO P. JOSE." Jose Guillermo Abel Lopez Portillo y Pacheco was the 51st President of Mexico from 1976 to 1982.