For years collectors thought these plated MK2 knives were made for WWII Frogmen. It was later discovered that they were actually Post WWII knives made from left over Ka-Bar parts and then sold commercially in the 50's and 60's. Eric

From Frank Trzaska's - approximately 1945-1952, Weske Cutlery Co. of Sandusky, Ohio purchased leftover and overrun parts from wartime Mark 2 knife contractors and assembled them into knives for commercial sale, polishing out the original manufacturer and military markings, and fitting them with ungrooved leather handles.