[PAR] [TLE] La Gommeuse [SEP] La Gommeuse is a 1901 oil on canvas painting by the Spanish artist Pablo Picasso.  It dates from his so-called Blue period and is noted for its caricature of Picasso's friend Pere Mañach painted on the reverse.  It was offered for sale "ex" the William I. Koch collection at a Sotheby's, New York, auction on 5 November 2015.  The painting realized $67.5 million at the sale, a record for a Blue period Picasso and placing the painting among the most expensive ever sold. [PAR] [TLE] Bill Koch (businessman) [SEP] William Ingraham Koch ( ; born May 3, 1940) is an American businessman, sailor, and collector.  His boat was the winner of the America's Cup in 1992. " Forbes" estimated Koch's net worth at $4 billion in 2012 from oil and other investments.
[PAR] [TLE] La Gommeuse [ SEP ] La Gommeuse is a 1901 oil on canvas painting by the Spanish artist Pablo Picasso . It dates from his so - called Blue period and is noted for its caricature of Picasso 's friend Pere Mañach painted on the reverse . It was offered for sale " ex " the William I. Koch collection at a Sotheby 's , New York , auction on 5 November 2015 . The painting realized $ 67.5 million at the sale , a record for a Blue period Picasso and placing the painting among the most expensive ever sold . [PAR] [TLE] Bill Koch ( businessman ) [ SEP ] William Ingraham Koch ( ; born May 3 , 1940 ) is an American businessman , sailor , and collector . His boat was the winner of the America 's Cup in 1992 . " Forbes " estimated Koch 's net worth at $ 4 billion in 2012 from oil and other investments .
Pablo Picasso's La Gommeuse was auctioned at Sotheby's as part of the collection of a businessman estimated to have a net worth of how much?
Pablo Picasso 's La Gommeuse was auctioned at Sotheby 's as part of the collection of a businessman estimated to have a net worth of how much ?
$4 billion
$4 billion