We've seen a handful of these objects over the years, and they've remained a mystery. They pop up on
ebay quite regularly too -
here's one, and
here's another.
My guess - and it is really just a guess - is that it's early to mid 20th century play money from a country that has historically had a "20 cent" or local equivalent in circulation. My best guesses in that regard are France and Mexico. Given that all of these items seem to appear in an American context rather than European, that would push the assumed origin towards Mexico, though more than a couple of them seem to be from Washington state, which may imply some kind of local origin, or at least local use as the earlier thread indicated.
The
Numista entry for it is equally uncertain.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis