"© Licensed to London News Pictures. 29/11/2019. LONDON, UK. A technician inspects ""Wings from an altarpiece: Saint Achatius with a train of knights and nobles: and Saint Ursula with an entourage of maidens"", 1520-23, by Simon Franck (Est. GBP400-600k) at the preview of Old Masters sales at Sotheby's, New Bond Street.  Works will be offered for sale on 4 and 5 December.  Photo credit: Stephen Chung/LNP"
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