These highly sought-after souvenirs, created in partnership with The Royal Mint, celebrate Sherlock’s genius – and his nemesis.

An individually numbered limited edition Medal Cover exploring Sherlock’s turbulent relationship with arch-rival Moriarty.

Each souvenir contains all six Special Stamps featuring key characters and popular episodes with hidden details only revealed under UV light*.

The stamps are cancelled with a Holmes Hill postmark that includes a Moriarty quote from The Great Game: ‘This little game of ours’.

The cupro-nickel medal includes the words ‘Get Sherlock’ – the message Moriarty scrawls on the Crown Jewels’ case in The Reichenbach Fall.

The obverse side illustrates “The Game is On", Sherlock's modern take on the literary version 'The Game is afoot'.