The most expensive work sold of Jasper Johns was "Flag" (1958), one of a series, was sold privately to hedge fund billionaire Steven A. Cohen in 2010 for a reported $110 million (then £73 million; €81.7 million). The seller was Jean-Christophe Castelli, son of Leo Castelli, Johns's legendary dealer, who had died in 1999. While the price was not disclosed by the parties, art experts say Cohen paid about $110 million. "Flags" are Johns's most famous works. The artist painted his first American flag in 1954–55, a work now at the MoMA.