Any Help With This Coin?

Not exactly a fake as it's deliberately not copying anything. That's the point of the impossible date. Some of these orignate in Greece and were used in Vasilopita, Greek Saint Basil's New Year's Cake, very much like a siver threepence in a Christmas Pudding. There may be traces of gildng left on the coin.
That explanation doesn't cover all of these copies, maybe 50%.

OK, here's three examples;



Left hand side is brass and very modern. Look at the date, then check out the king. Very Basil Cake.
The middle is probably another, and has a phony date but beautiful patina. No more than 30 years old.
The right hand coin does have some traces of gildng and also a fair amount of wear. There's a name on the truncation something like C Rija, and it didn't get written up when it was researched but from memory it has nothing to do with Basil Cake. There are quite a few sovereign type coins with spurious dates for which there is to date no explanation.