Hello
I have had this knife for about 20 years and always thought it was just a WWII Japanese Dagger. I was looking recently at a bunch of websites and could never notice one like it. I also have a WWII Japanese Police sword, I compared the flowers on the knife handle and the sward were different, which makes me think it may not even be what I thought it was.
Any idea where this knife came from?
https://imgur.com/a/gSIjGyk
Thank You