This is a factory sample prototype tanto made in Seki, Japan circa 1980s. It comes with the factory sample stickers on the knife and sheath. Believed to have been made by Tak Fukuta as a prototype for Parker. An excellent quality knife, it is similar in design to the Cold Steel tanto. The blade measures 3/16" thick. The cord wrapping is tight, has a little residue behind guard. Comes with black leather sheath.