Just got this in from Japan and im looking for info on what era you believe its from i think showa yall are the experts. The blade to me looks hand forged acid etched but has no markings other than one small one at end. Any help is appreciated thanks chris
https://i.imgur.com/2zX6Pgi.jpeg https://i.imgur.com/VrLn0es.jpeg https://i.imgur.com/0xfPQkj.jpeg https://i.imgur.com/KQe07F0.jpeg