IJN officer dagger, the lock mechanism is functional. Please visit my personal website shigure-militaria. The item "WWII Imperial Japanese Navy Officer Dagger Tanto Sword" is in sale since Wednesday, July 24, 2019.This item is in the category "Collectibles\Militaria\WW II (1939-45)\Original Period Items\Japan\Edged Weapons". The seller is "shigure_militaria" and is located in Toronto, Ontario. This item can be shipped worldwide.