Haven't had an opportunity to look for the pegs yet. Note however the discussion on bone for use as pegs. For what it is worth. Antlers from deer, elk or moose etc.   is very strong and I have no doubt would be great for making violin pegs. It is solid and when machined is ivory color. Has been used for many things over the years such as knife handles, awls and various tools. Perhaps I will turn out a peg if I ever get a few minutes, just to see what it's charasterics will be.