This is the famous & desirable US Navy Standard Diving Knife used in conjunction with the Mark V diving helmet. During World War 2 there were several companies contracted to make these knives. Many companies did not apply their name as it was not required. Once such company that did proudly apply their name was Union Cutlery! Union Cutlery, located in Olean, New York, is quite famous today for their high-quality knives. Starting business in the 19th Century, the company survived the Great Depression and was ready to contribute to the war effort in 1942. While famous for their knives made for the US Marines, Union Cutlery also produced a KA-BAR knife for divers – specifically the US Navy! The government contracts to make the KA-BAR for the Navy were apparently small as few examples exist today. The combination of rarity and world-famous name make the Union Cutlery KA-Bar US Navy Standard Diving Knife a top piece to find with knife, diving and WWII collectors. This example is in wonderful condition and appears not to have been used in saltwater. The varnished maple handle looks amazing and is free of any cracks. The brass sheath is also in great condition with no abnormal blemishes. A vintage leather strap is intact on the sheath. The KA-BAR blade is very nice. The 12 teeth per inch edge is blemish free as well as the sharp side. There is some very minor evidence of the blade being removed and inserted into the brass sheath on the sides, but nothing objectionable. Overall, this is a rare and wonderful example of a rarely seen WWII era KA-BAR knife.