This 2017 Design Icons by Arnold Machin medal cover is a Royal Mail first day cover. It celebrates 50 years of stamp and coin definitive designs by sculptor Arnold Machin and hosts a medal by the Royal Mint and Royal Mail stamps illustrating some of the classic stamp effigy's we have come to recognise for UK stamp and coin designs. Cancelled postmark First Day of Issue Stoke-On-Trent 5th June 2017.