Number 17A

Number 17A is an abstract expressionist painting by Jackson Pollock. It is owned by hedge fund manager Kenneth C. Griffin, who purchased it in September 2015 from David Geffen for $200 million, a then record breaking price, at which time it was loaned to the Art Institute of Chicago. It is now ranked 5th on the list of most expensive paintings.
The painting is oil paint on fiberboard and is a drip painting, created by splashing paint onto a horizontal surface. It was painted a year after Jackson Pollock introduced his drip technique. The piece was featured in the August 1949 edition of "Life" that made Jackson Pollock a celebrity.