An anonymous bidder has shelled out 10.8 million pounds, or $17 million, for a 1967 self-portrait of gay pop artist Andy Warhol.
The red-and-white silk-screen ink-on-canvas shows Warhol with his hand over his mouth. The self-portrait, one of only 11, was purchased Wednesday, according to auction house Christie's, and was previously held by a personal collector for the past 37 years.















