So I have done enough sleuthing, I believe, to have figured out this is a Type 98 Army Officers Gunto, I believe dated Aug 1943. (Please correct me if I am wrong in some way.). So the story as it was told to my dad and then me. My grandfather took this from a Japanese Officer POW, most likely early 1945 in Luzon, when he was with the 6th Army Division re-occupying the Philippines. My grandfather, a major, was the Fire Direction Officer in Charge of the 90mm anti-air guns. He later went on to be station in Yokohama, were my father attended school until he was like 6.
i have zero questions about authenticity. My dad has an officers Sabre from Desert storm as well. If my date analysis is good. I guess I’m just wanting more info on the maker and more about the blade? Traditional made/machine made somewhere in between? And I’m only vaguely familiar with the traditional terms, I’ve been learning as I try to learn this swords story.