Yves Klein, “Leap into the Void, 5 rue Gentil-Bernard, Fontenay-aux-Roses, France” (1960), artistic action of Yves Klein (© Yves Klein, ADAGP, Paris, Photograph ...
NEW YORK (Reuters) - The spotlight at this week's post-war and contemporary art auctions at Christie's and Sotheby's is trained on star offerings such as Jasper Johns' "Flag" and Andy Warhol's "Self ...