Almost bid on that one myself. It's an oddball and opened cheaply.
![Smile](images/smilies/smile.gif)
Had other irons in the fire tho. The Dutch are fond of clip pointed swords, so may have been a Dutch East Indies area marriage. guard look dished like a Chinese one, tonku looks odd, grip is round like Burmese/Thai Dha/Daab, raised rim bits of wood over brass are odd, and the loop on the pommel may have been for a sword knot or tassel. All in all - unusual. Probably WW2, doubt it was in any way japanese military. Police maybe?