A Nazi-looted painting that was hidden for decades smashed expectations at a rare sale in London on Wednesday as investigators work painstakingly to identify the origins of hundreds of other works from the same haul. Max Liebermann’s ‘Two Riders on a Beach’ was found among more than 1,200 works of art in the Munich apartment of German recluse Cornelius Gurlitt when police raided it in 2012, capturing global attention. The 1901 oil painting went under the hammer at Sotheby’s for £1.865 million ($2.92 million, 2.61 million euros), more than three times the pre-sale upper estimate of £550,000. It is the first from the Gurlitt collection to be auctioned off while the origins of many of the works remain unknown. ‘The challenge is to go through the provenance of every single picture in this collection,’ Sotheby’s director Bernhard Brandstaetter said. ‘It is a lengthy

Read More: Nazi-looted painting by Max Liebermann from Gurlitt trove fetches £1.865 million