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Sotheby’s sales up 16%
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Sotheby’s sales up 16% in 2018 thanks to $1bn private sales boost
Auction house reports $6.4bn in total sales last year, while chief executive Tad Smith says guarantees are not “at a particularly high level”
![](http://galleryoneart.eu/wp-content/uploads/2019/03/foto_NEWS.jpg)