This is a vintage new old stock knife made in Hong Kong in 1950. It measures 3.25" long closed and features a metal handle and thin stainless 1.875" blade. Made in the razor blade style (though the blade is not exactly razor sharp). It is a manual opening knife and requires the lever pushed down and forward to push the knife open with the hand and locks in place the same way. Locks at half-way as well. Handle is marked Hong Kong 1950. This knife is unused vintage old stock found in a Seki, Japan knife warehouse. Nice collectible in rare unused condition.