Queen's Platinum Jubilee: Royal Mint unveils largest coin
The 15kg coin was commissioned by an anonymous private UK collector for an undisclosed sum, and its designs on both sides were approved by the Queen.
With a diameter of 220mm (8.6in), it is the largest coin the mint, at Llantrisant in south Wales, has produced in its 1,100 years.
The coin has a face value of £15,000, and it took nearly 400 hours to make.
Designed by coinage artist John Bergdahl, the mint said it was "hand crafted to the highest standard".
https://www.bbc.com/news/uk-wales-61576353