Like many other mints, the Royal Mint issues bullion coins in precious metals, having much higher intrinsic value than their face value. Most of these by tradition are measured in troy ounces of fractions thereof, but the mint also introduced metric coins measuring one kilogram of pure metal (they are actually fractionally heavier as a whole, to account for the small amount of other metal in the alloy).
The 1 kg gold coins are denominated as One Thousand Pounds (£1,000), although their intrinsic (bullion) value is much higher than their face value. The coins vary in design depending on the occasion (they are "one-year" types usually issued in parallel with smaller denominations with the same reverse designs).
The coins are legal tender but are not intended for circulation. They are targeted at bullion investors or collectors who appreciate the special editions as pieces of art.
This commemorative one kilogram gold coin celebrating The Who is the fourth in the Music Legends coin series by the Royal Mint; earlier coins commemorated Queen, Sir Elton John and David Bowie.
The Who are an English rock band formed in London in 1964. Their classic lineup consisted of lead singer Roger Daltrey, guitarist and singer Pete Townshend, bass guitarist and singer John Entwistle, and drummer Keith Moon. They are considered one of the most influential rock bands of the 20th century and have sold over 100 million records worldwide. They are cited as an influence by many hard rock, punk rock and mod bands, and their songs still receive regular exposure.
The Royal Mint says:
"Our Music Legends collection showcases iconic acts from the nation’s diverse musical past and present. It is not often that a band will span generations, but The Who, with their explosive performances, have been a part of Britain’s soundtrack for more than 50 years. Together, groundbreaking lead guitarist Pete Townshend, microphone-twirling Roger Daltrey, John ‘The Ox’ Entwistle, and maverick drummer Keith Moon challenged genres, broke records and thrilled fans with their unique style.
Artist Henry Gray has included some of the most iconic symbols from the band’s live and loud performances in his design. A Union flag, mod logo and speaker-smashing Rickenbacker guitar all feature in the form of a pinball table, which is a nod to Tommy, one of the band’s most famous creations." | 
Search for United Kingdom: Gold Kilo 2021 Music Legends - The Who on eBay 