Here is the link to Rich's web site with his Commemoratives --> http://oldpokerchips.com/IVORY/IvoryCommem.htm

These are almost all valued T $500-$699 but the thing about Ivory is... finding them is one thing but finding someone who will part with them is quite another. Expext to pay more than the T value unless you can find one from someone who has no clue what they are worth. Not likely