Here we have another unusual find.

This is a poor condition copper Irish halfpenny coin dating from the reign of Charles II. He reigned from 1645-1684.

This coin dates to the end of his reign and was from 1680-1684.

On the second image you can see the harp with the crown above.

We always get our finds assessed by professionals and the Portable Antiquities Scheme entry on their database can be found on the link below.

https://finds.org.uk/database/artefacts/record/id/1052546