Higonokami

Higonokami is a type of folding pocketknife, originating in Miki, Hyogo Prefecture, Japan in 1896. Higo no kami means, ‘Lord of Higo,’ denoting both the province where the knives originated and given to honored samurai. The knife has no locking system, but is a friction folder or "penny knife", using the friction of the swivel or the pressure of the user's thumb on its iconic lever or chikiri, to prevent the knife from folding during use. The handle of the Higonokami is made of folded sheet metal. The handle is stamped with the name of the maker  and the type of blade steel. A distinguishing feature is that the blade has a flat grind without a secondary bevel.