I got this one off Ebay with a razor, and I think it might be an Arkie. I'd been hoping it was just a very dirty coticule, but oh well.
She's about 2.5 x 8.5. I think I have the pale side just about lapped, but the other side has some shallow gouges in the brown area and scratches at two corners and since I only have a DMTC I'm not gonna push it. No slurry was visible while lapping under the sink, and she's quite hard. There are also lots of little shiny spots in the surface - not sure what those are. Smell is almost floral and a bit earthy, like a mild soap. Tastes like she smells (Just kidding, I've yet to put a hone in my mouth).
Here are some pictures.