This 2018 The Prince of Wales 70th birthday 5 pounds coin cover is a Royal Mail first day cover. It commemorates Prince Charles's 70th birthday and hosts a brilliant uncirculated five pounds coin by the Royal Mint and Royal Mail stamps showing the HRH Prince of Wales in active duty and in social settings with other Royal members. Cancelled postmark Celebrating HRH The Prince of Wales's 70th Birthday London SW1 14th November 2018.