I did have one a while ago, but its changed hands at least twice now. There don't seem to be many around anymore, and they had a little excitement in the community years ago. It was such a hard stone, and as a novice honer I just couldn't seem to make it work. I wish I knew who had that artuanon now, because I would be interested in hearing their thoughts on it.I think @musicman980 has one, but there doesn’t seem to be much info about them generally.