US WW2 MK5 Deep Sea Knife

In a very nice used condition a US WW2 MK5 Dive Knife.The knife has the standard 6 7/8 blade with saw teeth on one edge. The grips are 9-groove turned maple and the hilt has a brass pommel, and the knife screws into a heavy brass cylindrical scabbardA difficult-to-find U.S. Navy diver's knife!