Because there are a handful of casino chip collectors/historians in France and Belgium who watch this type of rare material like hawks; who have been doing so for 22, 40 and over 50 years... and note their findings and pass information on in their shops, lists, in their books and exhibition in Nice... and more.

Out of the 10, I have 4 remaining; of which I have sold some between $400 and $1000 each.