Updated: Gerhard Richter painting owned by Clapton going up for sale

NEW YORK — A painting by the German artist Gerhard Richter owned by British singer-songwriter Eric Clapton is slated for auction. Christie’s is offering “Abstract Painting” in New York on Nov. 15. It’s estimated to fetch about $20 million. The exuberantly colorful and textured oil-on-canvas belongs to a four-part series from 1994. One is in […]