Yes, the overstrike is a coin. It is Islamic and has Arabic on it. Not my area - but it would no doubt have been struck centuries after the Provincial host coin, which adds to the cool factor.
Just to add...If it were mine, I'd might try reaching out to Stephen Album to see if he recognizes the over-strike. I wonder if it might be Mamluk. They liked occasional circular motifs (as with the one to Tyche's right), like:
https://www.acsearch.info/search.html?id=8615459https://en.numista.com/81418And note the similar letterform on the obverse of that second coin...perhaps the same Arabic letter as on yours. (Although I've seen it on numerous other Islamic issues too, such as:
https://en.numista.com/catalogue/ph...original.jpgIf Stephen Album didn't reply, I'd probably post at the World of Coins forum (worldofcoins.eu) to help identify the over-strike. Lots of specialists in Islamic coinage there.
The fascinating thing about your coin is the contrast in cultures represented in the strikes, and - I suspect - the great span of time between those strikes. It's a great find.
Edited by Kamnaskires
Yesterday 6:43 pm