I recently purchased this steel helmet from Japan, it came with a banner - possibly for wall-mounting - and one leg puttee. The banner can be seen in the pictures. All items have always been together, and I was told that the owner of the items served in the Kempeitai. Judging by the paintwork, the badge on the front has been on for many years. Can any of you experts out there identify the badge and tell me what it is?