In 1994 the Royal Mint together with the Royal Mail issued this First Day one pound brilliant uncirculated coin and stamp cover.
This first day cover contains an error in the description,
regarding Edward II who was emphasising his claim to the French throne, however it was Edward III, not the second.
All of the first day covers containing the error, where recalled,
so only a few hundred are thought to have survived
This is one of those very rare examples