"One could always try the manufacturer or distibutor of the chip... see when it was made, how many were made, for which casino it was made, and when it was distributed to said casino."

Do you really think a manufacturer will give out "Propriortary" information on their customers orders? They protect it like a lioness protects its cubs.

I have seen boxes in a wharehouse of 3 different old manufacturer records going back to the 1930's from companys bought out by a current manufacturer. The current manufacturer won't even admit they are there, much less let you look at them.

Another old manufacturer went out of business 10 years ago. When I asked about buying the records, he cited protecting his customers and a big NO WAY to copying them or even looking at them!