Version of Banksy 'Girl with Balloon' sells for £3.1 million
Final chord: Royal piano restorer sells lifetime's collection
A slice of history: Charles and Diana cake sells for £1,850
World Wide Web source code NFT sells for $5.4m
Freud portrait of Hockney sells for £14.9 million
Picasso painting sells for $103m in New York
'Sabre-toothed tiger' skeleton sells for more than $84,000
Pigeon sells for record 1.6 million euros to Chinese fancier