Years ago I purchased a nice antique blade, mumei, osuriagi, with Gunto mounts from a guy that had a number of pieces. He also gave me a loose surrender tag at the same time, inscribed in Japanese & English, indicating a sword by Colonel Shigeyoshi Shibuya of Wakayama had been surrendered. He didn't remember if the tag went with my sword or one of the others he had. I wrote to the Colonel asking if he could describe his sword but the letter came back unopened.