This one is proving elusive to ID. Slightly smaller than a US quarter, the legend is a rather unhelpful "1 Franc" with the denomination curled under the number in a half circle. There are no denticles on the raised rim, and the surface appears to be silvered or antimony treated copper/brass. Obverse matches the reverse. It rang a faint bell and reminds me of canteen tokens issued during the first world war (like the NAAFI tokens issued to British forces for use in French facilities). The font & materials also seem similar to French notgeld from ~1920.
Hmm... Some Monaco casino/merchant tokens look similar in metal and type font, but I haven't been able to find anything very close. Coin not mine. I tried an image search for "franc jeton Monaco".
Hmm. I hadn't thought about searching French overseas possessions like Algeria. During the world wars, many of those departments likely issued emergency coinage. How many other countries also used the Franc denomination? Monaco, Switzerland, Belgium, Luxemburg, Andorra, Lichtenstein, Cambodia, the Saarland, the Congo, Chad, & Cameroon come to mind. I'm probably missing others in Africa, Oceania, & the Caribbean.
I looked around a bit more. Most tokens are not anonymous, so that might help narrow down the categories a bit. Military base tokens and casino tokens should almost always have an issuer name on them, for example. From the anonymous tokens I could find, categories included: Vending machine tokens = jetons automatiques Consumer tokens = jetons de consommation Toilet tokens = jetons de toilette None looked that close, though. My French is nonexistent, so please excuse any poor attempts at translation. I think this is more likely to turn up on a French language token seller than on an English site.
