The Daily Mail writes: The discovery was made in October 2018, when Mrs Castle found a broken coin on the surface of the ground. Another signal beside it in the soil revealed a Medieval brass purse bar at eight inches down. When Mr Castle came over to help he immediately found a gold coin, and over the next two hours the couple found four more gold coins in an area of five metres. The coins from the reign of King Edward III are 1.3in (3.4cm) in diameter and show the Plantagenet monarch in a ship holding a sword and shield on one side and the royal cross on the other. The coins are to be sold by Noonans.