I do agree it is earlier. I tend to favor
John II,
his saint was Mary, the protector of the city was Mary. I think she was chosen because she was a Saint that was also very much respected in the Muslim faith.
As for the coin, until another shows itself , hopefully with a full
legend it will remain a mystery to the John it is referring to. I did send the image to Dumbarton Oakes last year but no response from the museum.
It might be a billion coin but it would have been a very low quantity of silver.
I appreciate people keeping this
thread alive because I would love to know what it is.