This collection started as the product of a mis-spent youth, venturing into paranumismatics! A work in progress during these times of curfew, keeping me well and for the best. I have started some Web pages with my collection of slot machine tokens.
https://machinetokens.blogspot.com/
Probably only 10% of the collection listed so far but I'm working on it. Would be happy to hear from other collectors of this series.