Source: United States & Canada – South China Morning PostAndy Warhol’s iconic sage-blue background portrait of Marilyn Monroe is tipped to sell for a record-breaking US$200 million at auction in the spring, Christie’s announced on Monday.The auction house said it expects Warhol’s 1964 Shot Sage Blue Marilyn to become the most expensive 20th century artwork when it goes under the hammer in New York in May.The silk-screen work is part of a group of Warhol portraits of Monroe that became known as the “Shot” series after a visitor to his Manhattan studio…Read More