This is possibly a sword carried by a member of the Imperial family during WW2.
Imperial family members were deployed in various regions to supervise the looting of wealth and shipping the treasure back to Japan. They were the representatives of the emperor and held the rank of a Colonel.
The wrap of the handle is fine silk instead of ray skin and the metal fittings are in gold. The tsuba is samurai of Edo period. The blade was made by Nagamitsu with 2 characters missing with a cut end for some reason. There is a star stamp and Arsenal marking making it a high quality army commissioned blade made for senior officers.
The Colonel tassle is in excellent condition. The blade has developed some rust spots and hopefully a cosmetic polish could make it looks better without removing too much steel.
Price : NOT FOR SALE