Recently, one of my friends offered me to buy this kaiken. It seems original to me, but I would like to have your opinion on it. I also wonder how much it can be worth, and if a polishing by a recognized togishi would be worth it. I couldn't disassemble the blade, there is no mekugi in the tsuka.
Sorry about the fact that the blade is lying on the floor, but I didn't take these pictures.