Ermanno Rivetti adds to the announcements of Christie’s London Postwar and Contemporary sale with a big Rauschenberg:

Robert Rauschenberg’s Transom (1963), estimated at £4m-£6m, is part of the silkscreen series that he painted around the time that he won the grand prize for painting at the Venice Biennale in 1964, and that portion of his work has been given its own room in the ongoing Tate Modern retrospective. The work went unsold in at Sotheby’s New York in 2009 with an estimate of $4m-$6m, though it sold privately after the sale to the current consigner.

Rothko and Rauschenberg to lead Christie’s London auction in February (The Art Newspaper)