Vintage Ichiro Hattori design Amphibian Boot Kershaw Dagger. 100% original and not used or sharpened. Marked in both sides of the blade The leather sheath is also original and marked in both sides. These is an original made in Japan in the 80/90´s , early contracts of Ichiro Hattori, and the profile is almost identical to other Hattori works, for Kershaw, Tekna and is onw brand. He also is the designer of some the most beautiful knives form a few brands, like Cold Steel and Sog. The actual copy on the market, made in China or Taiwan, is not the same knife or have the same quality. Single piece full tang skeleton spear point with serrated section and fuller, satin finish. Handle material is a black synthetic rubber. These knive is really amphibian and can be used in both EDC or diving. These sheath version is leather, so not good for diving, but at the time of his release kershaw have another sheath version, just for diving. Nowadays this knife is a highly collectible version, as well as very aesthetic and with a special charge, so even Tom cCruise uses it in a fight from the movie Mission Impossible.