This is a vintage butterfly knife made by Oguri for K.T. Cutler circa 1980s. We acquired this from K.T. Cutler/Kanetsune in Seki, Japan and it is not marked Japan because it was made for the domestic market, so only marked "440 Stainless Steel". It features a solid metal handle with decorative black plastic inlays. Closed length is 4.25"long and the blade measures 3.25". Great sturdy feel as you remember from vintage Japanese balisongs in the smaller size. Comes in the original box with paper in Japanese.