8x22mm. 3.75" barrel length. SN: 40432. Blued metal finish with polished barrel and locking lug mounting checkered black synthetic grips. Short-recoil operated internal hammer fired autoloading pistol fed by detachable single stack magazines. Standard type markings struck into the left frame. Right frame shows the 18.9 date marking indicating it was made in September, 1943 above the twin markings indicating it was made by Chuo Kogyo under Nagoya Arsenal supervision.