Christie’s opened the Frieze Week auction action in London on Wednesday, hosting a sale of Impressionist, Modern, and contemporary art with 52 lots (after four were withdrawn). Estimated to fetch ...

Signed, numbering 415/999, 426/999, and 418/999 respectively on the underside (there were also 50 artist's proofs for each edition) ...

At the upcoming Frieze Week auctions in London, Christie’s will offer a major Jeff Koons sculpture, Balloon Monkey (Blue), 2006–13, with an estimate of about $8.4 million to $13 million (£6.5 million ...