Nakaya Dorsal Fin Version 1 Kuro-tamenuriThe Dorsal Fin version 1 in smooth Kuro tamenuri finish exemplifies the sleek minimalism of Nakaya style form and function are harmoniously united, with the raised fin on the cap providing a distinctive aesthetic feature as well as serving as a built in roll stopper. Multiple layers of urushi lacquer are applied over a period of months to create the raised fin this is one of the most time intensive procedures utilized by Nakaya. Even the ebonite hard