The last decade of the 20th century produced coins that modern numismatic enthusiasts spend three-, four- and even five-figure sums to get their hands on today. The U.S. Mint produced collector ...

Only 400 1oz gold versions of the coin have been struck, the 1kg silver coin is limited to just 64 coins. The Royal Mint says the release coincides with what would have been Lennon's 85th birthday.