Beautiful Nakayama Asagi hone - very generous size: 7.9" x 2.9" x 1.1".
My hone collection has gotten a bit larger than it needs to be (3 J-nats and 2 coticules) and I'm jonesing for a Filarmonica straight so it's time to let this beauty go...
I'll also toss in a Tenjou nagura to go with it.
Honing surface (lapped and ready to go):
Underside (e.g. its 'skin'):