M1rror Edge recently had the opportunity to repair and sharpen this Mark1 U.S. Navy General Purpose knife (20210407). It originally was oxide coated to prevent reflection but due to time and neglect, it needed the rust removed, and with it came the coating. It looks great polished. The leather is in pretty good shape too. With its original scabbard, it is a great knife. This knife retains most of its battle-worn character and flaws.
The Mark 1 GP knife design was originally used during WWII. This blade is a high carbon steel 1075; the same blade steel as the WWII Mark 1 general-purposes deck knife. In the early days of WWII, sailors would carry sheathed knives that they brought from home. In 1941, the U.S. Navy decided that a standard knife should be given to each sailor. The Knife is manufactured in Rhode Island U.S.A and the Sheath was manufactured in Dedham, Ma. U.S.A. Overall Length 10 5/4-Inches Blade Length 5 1/8-inches, Blade Thickness .125, Weight 4.7-ounces