This is for the rare 2020 Tokyo Olympic Games coin which was never officially released because the games were cancelled. 2020 appears on both the portrait and reverse of the coin, making it officially an 'error coin'. It is certified as Brilliant Uncirculated and comes from a Royal Mint annual set on a card. It will be sent by Royal Mail second class signed-for post. 

Incidentally, the coin was reissued in 2021 with 2021 on the portrait side and 2020 on the reverse, making it also of interest as one of very few dual-dated coin to be released, however the much larger number minted mean this is obtainable for a much lower price.