Gretchen Berggruen. Photo: Drew Alitzer // Winslow Homer, The Woodcutter, 1891 / John Singer Sargent, Madame Ramón Subercaseaux, c. 1880-81 (detail) / Lee Krasner, The Green Fuse, 1968 (detail). © 2021 The Pollock-Krasner Foundation/Artists Rights Society (ARS), New York / Childe Hassam, Celebration Day, 1918 (detail) / Coptic, Square with Female Bust, c. 800-1000 / El Greco, The Crucifixion, 1575-80 (detail). Three Centuries of American Art – Antiquities, European and American Masterpieces from The Fayez S. Sarofim Collection, The Museum of Fine Arts, Houston, 27 June-6 September 2021 // Andy Warhol, Beatle Boots (Negative), 1985-86. Acrylic and silkscreen ink on canvas. 20 x 16 in (50.8 x 40.6 cm). Estimate: $40,000-60,000 / George Condo (b. 1957), Untitled (Sculpted Painting), 1987. Wax crayon, oil, colored pencil, watercolor, ink and paper collage on canvas. 15 x 18 in (38.2 x 45.8 cm). Estimate: $20,000-30,000 / Kenny Scharf (b. 1958), Snake, 1992. Acrylic, oil and silkscreen ink on canvas board in artist's appointed frame. Canvas board: 5 x 7 in (12.7 x 17.7 cm). Frame: 8⅜ x 10⅜ in (21.2 x 26.3 cm). Estimate: $6,000-8,000. All offered in First Open | Post-War & Contemporary Art from 9-21 July 2021 at Christie’s Online // Jane Hay at Christie’s Education. Photograph by Liz Seabrook // David Hockney (b. 1937), Boodge, 1995. Signed and inscribed 'LOVE DAVID H' (upper edge); titled and inscribed 'Boodge For Richard' (lower edge). Oil on canvas. 8⅝ x 10⅝ in (22 x 27 cm). Estimate: $20,000-30,000. Offered in First Open | Post-War & Contemporary Art from 9-21 July 2021 at Christie’s Online |