"© Licensed to London News Pictures. 01/07/2016. London, UK.  Technicians prepare to hang an oil study called ""The Chariot of Apollo"" by Sir Peter Paul Rubens (est. GBP 1-1.5 million), which has never been seen on public display since 1823, at the preview of Sotheby's London Old Masters evening sale which takes place 6 July.   Photo credit : Stephen Chung/LNP"
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