Posting for a friend of mine, and this is a the story behind the sword.
Hello! My name is Tyler, I am trying to help my grandpa learn more about his sword. His step father got it in Japan when he was there after the war. Supposedly it belonged to a non commissioned officer. I don’t know much about these swords but I want to learn with him! I could be wrong but I believe the inscriptions identifies the sword as being crafted by Tanba no Kami Yoshimichi.
so far we have establish the sword is Japanese, wooden handle, signature (mei) on the tang, and that’s as far as we seem to be able to go. If anyone has any idea or info it would be much appreciated!