Daventry Coin (unofficial)

The Daventry Coin is a newer edition of the Daventry Gold Coins. Despite his protests an edition of the coin with Graham's face on it, was released recently to accompany the old ones displaying the face of King Edward his predecessor. The front bears the face of King Graham, with his name listed underneath. The back says, "Kingdom of Daventry", and "One Gold".

Behind the scenes
Infact, Graham's face appeared on the Copper coin from KQ6.

If Daventry's gold coins come from the Chest of Gold, why would there be any faces of Daventry's kings on the coins? Do they melt the coins down and re-mint them?