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LONDON, ENGLAND - OCTOBER 12: A one of a kind gold Ferrari 512 BB with an estimate £350,000 450,0000 at Sotheby's on October 12, 2018 in London, England. To be sold as part of The Midas Touch, Sothebys first ever auction dedicated entirely to gold on 17 October. (Photo by Tristan Fewings/Getty Images for Sotheby's)

LONDON, ENGLAND - OCTOBER 12: A one of a kind gold Ferrari 512 BB with an estimate £350,000  450,0000 at Sotheby's on October 12, 2018 in London, England. To be sold as part of The Midas Touch, Sothebys first ever auction dedicated entirely to gold on 17 October. (Photo by Tristan Fewings/Getty Images for Sotheby's)

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LONDON, ENGLAND - OCTOBER 12: The 18ct gold 'Head of Kate Moss', 2008 by Marc Quinn sits on display during a media preview at Sotheby's auction house for their 'Midas Touch' auction on October 12, 2018 in London, England. The sale, dedicated entirely to gold items, will be held on October 17th, 2018 (Photo by Jack Taylor/Getty Images)

LONDON, ENGLAND - OCTOBER 12:  The 18ct gold 'Head of Kate Moss', 2008 by Marc Quinn sits on display during a media preview at Sotheby's auction house for their 'Midas Touch' auction on October 12, 2018 in London, England. The sale, dedicated entirely to gold items, will be held on October 17th, 2018  (Photo by Jack Taylor/Getty Images)

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LONDON, ENGLAND - JUNE 01: An Imperial Presentation Faberge gold and enamel box (est. £150,000- 200,00) goes on view as part of Sotheby's Russian Pictures and Russian Works of Art sales at Sotheby's on June 1, 2018 in London, England. The Russian Pictures and Russian Works of Art sales take place at Sotheby's in London on 5th June 2018. (Photo by Tristan Fewings/Getty Images for Sotheby's)

LONDON, ENGLAND - JUNE 01: An Imperial Presentation Faberge gold and enamel box (est. £150,000- 200,00) goes on view as part of Sotheby's Russian Pictures and Russian Works of Art sales at Sotheby's on June 1, 2018 in London, England. The Russian Pictures and Russian Works of Art sales take place at Sotheby's in London on 5th June 2018.  (Photo by Tristan Fewings/Getty Images for Sotheby's)

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LONDON, ENGLAND - JANUARY 14: British Artist Zoe Bradley displays her paper sculpture crown adorned with Swarovski crystals and 3,000 individually cut and scored gold leaves at Sotheby's on January 14, 2016 in London, England. (Photo by John Phillips/Getty Images for Sotheby's)

LONDON, ENGLAND - JANUARY 14:  British Artist Zoe Bradley displays her paper sculpture crown adorned with Swarovski crystals and 3,000 individually cut and scored gold leaves at Sotheby's on January 14, 2016 in London, England.  (Photo by John Phillips/Getty Images for Sotheby's)

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A flag flies outside Sotheby's auction house on New Bond Street ahead of a preview of 'The Midas Touch' auction in London, U.K., on Friday, Oct. 12, 2018. The auction is Sotheby's first auction dedicated entirely to gold, according to a release by the auction house. Photographer: Simon Dawson/Bloomberg via Getty Images

A flag flies outside Sotheby's auction house on New Bond Street ahead of a preview of 'The Midas Touch' auction in London, U.K., on Friday, Oct. 12, 2018. The auction is Sotheby's first auction dedicated entirely to gold, according to a release by the auction house. Photographer: Simon Dawson/Bloomberg via Getty Images