Sotheby’s Unveils Never-Seen-Before Blaquier-Arrieta Collection

For Philip Hook, author of The Ultimate Trophy: How the Impressionist Painting Conquered the World, who spent decades at Christie’s and Sotheby’s, the collection’s mystery was a continuous thread. “It was [nicknamed] the El Dorado in South America, but no one knew what was in it. So now for this to be revealed, it is tremendously exciting,” he says at an exclusive first preview of the collection. “The collectors did not lend the pictures. You wouldn’t have seen…