United States Marine Corps noncommissioned officer's sword
The Marine Corps noncommissioned officer's sword is a sword worn by noncommissioned officers (NCOs) and staff noncommissioned officers (SNCOs) of the United States Marine Corps. The NCO sword was adopted in 1859 and is patterned after the United States Army's foot officers' sword of 1850. The M1859 NCO sword continues service today as the Marine Corps drill and ceremonial sword. The sword's use is restricted by regulation to ceremonial occasions by an NCO or Staff NCO in command of troops under arms or at weddings and wedding receptions where at least one of those being married is in uniform and has the rank of Corporal or higher.
Presley O'Bannon
Because of O'Bannon's distinguished record during the Derna campaign, Marine Corps Commandant Archibald Henderson in 1825 adopted the Mameluke sword for wear by all Marine Corps commissioned officers. Since the initial distribution in 1826, the Mameluke sword has been worn except for the years 1859-1875, when regulations temporarily required Marine officers to wear the model U.S. Army M1850 foot officers' sword. Mameluke swords are worn by Marine Corps officers as prescribed with all uniforms except the evening dress and utility uniform.