Hello. I am trying to ID this Japanese sword. I labeled one picture with "bayonet" but it isn't a bayonet. A second item not pictured here is a bayonet with a marking from the Heiho Ordnance Factory in Inchon, Korea. A family member inherited both and was told they were brought back from Japan in WWII. I'm trying to find out what this one is, and what the writing says.
Thanks for any information!
Chris A