So I picked up a small hone the other day at an antique market, and just wanted to see if I could get a little more info, or an idea of what I can use it for. I can't find my battery charger for my camera right now so I'll post pics later, but basically it's about 5"x2"x5/8", and a dark green/greyish colour. It's got no box or label or markings, and came with a small stone that's like a wedge and is the same material. As best as I can tell by comparison, it is much finer than my Norton 8k stone, and it feels finer than my Swaty but is difficult to judge. Any idea on what I can look at to compare would be great. I realize without pics it's tough to say but I'll have them up soon. I'm not too concerned about if it's valuable, I paid $5, just want to know so o know where to use it when honing.