Kind of a related (counterfeit) story from Thomas Day's "Casino Tokens of Monte-Carlo" articles.

When the casino first opened, players were compelled to purchase chips valued at 2 francs each from the administration to use in play, and at the end of the day's play they were redeemed for cash at face value... but, in practice, they were not always redeemed, and by degrees brought into circulation and used for goods and services throughout Monaco and were virtually accepted at all shops about town in lieu of cash. Two hundred thousand of these 2f chips were issued by the casino and circulated for years into the 1870s, until one day the casino recalled them and issued a mandate that they must be immediately redeemed... and the casino learned that the 200,000 2f chips had grown to 400,000 pieces. The casino paid out for each and every piece returned. Today, those counterfeit 2f chips command more than the original pieces.

JB