"© Licensed to London News Pictures. 23/06/2017. London, UK. A staff member views ""1-Heptene"", 2004-2011, by Damien Hirst (estimate GBP0.5-0.7m) at the preview of Sotheby's Contemporary Art Sale in New Bond Street.  The auction, which is dominated by Pop art, takes place on 28 June. Photo credit : Stephen Chung/LNP"
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