This stone I got from Max a few months back, it is a harder than the Red Aoto, it finishes in the 3-5k range.
I like that stone a lot it is my go to touch up stone, creates nice mud but not as much as Red Aoto and cuts very fast, it is a great foundation stone to do kasumi finish. I am selling because I just got a bigger (2x thicker) Green Aoto. The stone has nice greenish hue when wet. The stone is lacquered with cashew lacquer.
PRICE= $220 shipped in US, international buyers pay actual postage, I'll eat the PP fees.