So I got it reappraised and am asking 7,000. It is an unusual naginata. Here is what Bob wrote me.
Now I remember that the sword was unusual because it had a katakiriba shape which I had never seen on a naginata before. It was signed with the MASA in the SEI rather than SHO kanji. It was one of 5 koto makers but now I don't remember which smith I had determined it to be. I could take it on consignment but you might do better to take it to the Aug SF show and sell it there. what such a piece would bring I am not sure but if it were mine I would ask $8k and see what happens. You need to determine how much money is involved and then go from there. How fast do you want to move it out? I guess all these will help with price and selling it.