Constructed in the early style iron guard configuration with a ribbed wood handle, of which only 1,002 were manufactured. It measures 13 1/2 inches overall, with an 8 1/2 inch single edged blade set in an iron guard marked "579" on the right and "U.S. SPRINGFIELD" on the left. The ribbed wood grip has "S.W.P./1881" stamped on the butt. Includes a brown leather sheath, fitted with a brass throat and a belt loop with hinged cartridge loop bar and Watervliet Arsenal marks on the back.

Very good, the blade mostly bright with some scattered light spotting, and the guard showing some slightly aged patina. The grip is fine with a couple moderate chips absent from the edge of the butt and otherwise minor handling marks. The sheath is good with some moderate wear, some light verdigris on the attractively aged brass, and the swivel portion of the belt hook reattached to the sheath in a way that has prevented it from swiveling. A very rare U.S. military knife!