Our general page on jetons (tokens used for games, counting, and commerce) appears at this link [Press Here]. Jetons like this one are usually more valuable than common jetons because they are made of silver, about one-half ounce, and because their artwork is superior. An example of a lower-quality brass jeton appears on this CoinQuest page.
There are many patterns and many inscriptions. All carry, at least roughly, the same value. Dave's example shows Louis XVIII and bears the sly Latin expression LEX EST QUODCUMQUE NOTAMUS meaning (roughly) 'Law is whatever they want us to see.'
A silver octagonal jeton in the condition shown in our picture would usually sell retail for $75 to $100 US dollars. If you were selling one to a coin dealer, he or she might pay $25 to $50 for it. Approximate catalog values are:
worn: $20 US dollars approximate catalog value
average circulated: $50
well preserved: $100
fully uncirculated: $240
Be sure to read our Important Terminology page to understand how to interpret catalog values.