I believe that these were termed as Pro-Tek Tokens (37mm). Made of light weight aluminum, with printed vinyl stickers (I believe they are fused to the underlying aluminum frame) there are several examples of these being used as real-value tokens in Nevada (Riverside, Laughlin), Colorado (Longstreet) and elsewhere. I don't think these are still being made by Chipco. Interesting that the printing, while still brite, appears a bit mottled.

Anyone familiar with other sample designs?

Thanks for looking!

Jim