I picked up an inherited Japanese sword from a WWII Vet who was in the Pacific. The blade seems shorter than others I've seen & it might have marks from the folding process?? The grip is cloth wrapped over what might be grey fish skin, which is around wood. I removed the wooden peg, brass/bronze sleeve & metal hand guard with a paper spacer. The scabbard is wood with a metal ring & end. It is missing the spring lever to lock the sword in place. I'm hoping someone can decipher the engraved words on the tang & tell me something about it.