Hello Gary,
I assembled the mate to this one before I came up. Where this one is Satin finished, the polished one is for sale $450. (This one was spoken for - I didn't word my title properly).
To answer your question, it is "Linen Phenolic". Very tough, stable, nice pattern. The steel is Stainless Tool Steel. Liners are Brass Alloy.
These knives have nice actions.
Let me know if the second one interests you. I'll polish the Rivet Heads and Sharpen it in the am. Then it's done and I'll photograph.
Thanks,
Gary