Mark Rothko, Black, Red-Brown on Violet Painted in 1969, acrylic on paper mounted on panel, 39 x 25 1/2 in. 99 x 64.7 cm. Est. 1,500,000—2,000,000 USD - Lot Sold. 1,650,500 USD PROVENANCE: Marlborough-Gerson Gallery, Inc., New YorkSotheby's, New York,...