I've got a lot of those old smith's stones and every single one of them is excellent. I've got 1 two piece set of new smith's stones. The tiny fine one sits next to my sink because it's a hard, semi translucent purple/black/grey BUT what got my attention was it had the little bubbles in it that llyn Idwals do sometimes. Very fast, very fine, but it's in the same pouch with my AG Russell dark translucent hard arkansas. Very good kit, I use it when I can't get something to work out quickly with a strop. The coarse stone is garbage, it sends man made. Like concrete with quarts chunks in it. Really common with modern "soft arkansas". It sucks.Found a couple of NOS Smith’s for a great price, so I couldn’t resist adding them to the pile.