I was getting a bit of a laugh at the enthusiastic bidding, but I thought I'd better say something.   I'm sure most members that care for such swords are aware of this one (and keeping it secret). https://www.ebay.com/itm/Very-Interesting-Japanese-WW2-NCO-Navy-Sword-Matching-Scabbard/133091062265?hash=item1efcd871f9:g:YwIAAOSwZbFdC73w   Rather than let people down, better to share my opinion. Which is just that, though backed up with experience and some research from Nick.   Firstly: ever