Thread: Help while waiting for my Nakayama to get here

So I just pulled the trigger on a Nakayama hone, any comments or thoughts are welcome. She's a green one with black slurry, and measures 240mm (just under 10") by 65mm (just over 2"). I dealt directly with a guy in Japan so there were some language barriers, but people here and at Cornell's language department helped me out. Explaining the need for high quality on razors lead no where, so I researched Katana and Sushi Knife sharpening, as these are the most common reason our "razor" hones are made, and it turns out that they both require the same high grade cutting edge we expect. And in the case of the Katana, they are highly regarded and some say the best and finest hand made damascus steel ever. So I asked him, what would you use to edge an amazing Sushi knife or a Katana, and he said, you need something really special (this was good, before he was saying, this and that will be fine), and went and picked out a few rocks from his collection that looked to be good (good origins, qualities, etc) and tested them on some Japanese blades. This is what I ended up with, and he claims will be a good finisher well above "10k" grit. Confirmed that it leaves the hazy finish of a high grade Japanese stone. It has been lapped and is ready to use (hence the characters are not original) though I will probably relap it. Also, don't know if this matters or not, but he claims this was hand chiseled and lapped on top obviously to use and on the one end for the trademark, not sawed, and the pictures seem to confirm this.

If possible can anyone translate the characters for me?

Once again, any thoughts concerns comments and advice are welcome. Just showing off and hoping to discuss this, just trying to ease the waiting period...