Sorry for low quality image.
This is what I can make out on the obverse.
There is a crown (a cross made of four pearls) with two pearls (?) On either side. Two pearls in hair on either side, possibly, at least on tbe one side. The letter "H" however might be the legend for Henricus rex which is for King Henry but seems to have been in use during King John, unchanged.
I cannot make out of there is a sceptre since cut off.
The reverse contains four pearls and a short voided cross.
Terminology is not great since I'm new to coins.
I believe its a King John coin but I'm struggling to identify any other information.
The image of the coin might be upside down.

