The complete stamp sheet, affixed to a First Day Envelope and cancelled with a bespoke handstamp  A bespoke handstamp with exclusive Hand of the King design and featured Belfast location  An exclusively designed envelope, featuring a unique astrolabe design, customised with the series logo and house sigils  An illustrated information card, featuring an overview of the Game of Thrones TV series  Dated the official launch date, 23.01.18.