French artist Yves Klein in front of one of his sculptures in France, late 1950s. Photo: Express Newspapers / Getty Images
French artist Yves Klein in front of one of his sculptures in France, late 1950s. Photo: Express Newspapers / Getty Images
Receipt for 'invisible' artwork by Yves Klein estimated to sell for $550,000 at auction
The origins of the piece trace back to a performance staged by the artist in late 1950s
