Study from Portrait of Pope Innocent X

September 19, 2008 | 12:00 p.m. CDT
A Christie's auction house worker in London adjusts "Study from Portrait of Pope Innocent X by Velazquez," a Francis Bacon painting. The painting is one of dozens inspired by Velazquez's work, which Bacon described as "a picture I have always been haunted by." More than 15 years after his death, a retrospective of his work heads to London, Madrid and New York.

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