A friend recently showed me a small round box, about the diameter of a cap box, but twice as high. He said his great grandfather made it from a piece of antler. That was turned and polished. It did have the look of old ivory and it was so finely crafted that light passed through. There was no marking of any kind. The bottom and lid appeared to have a dark brown wood, probably walnut inlaided where the antler would be pourous.
Looks like something to try to copy.