Richard Diebenkorn, Seated Woman, (1966), Synthetic polymer paint and charcoal on board, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/35624 Richard Diebenkorn, Untitled (Ocean Park), 1977, Synthetic polymer paint, gouache, watercolor, cut-and-pasted paper, and pencil on cut-and-pasted paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/36562 Richard Diebenkorn, #4, from Five Aquatints with Drypoint, 1978, Lift ground aquatint with burnishing and drypoint on white wove paper, Harvard Art Museums, Cambridge. https://dartabase.art/cite/harvard/6084 Richard Diebenkorn, #2, from Five Aquatints with Drypoint, 1978, Lift ground aquatint and drypoint on white wove paper, Harvard Art Museums, Cambridge. https://dartabase.art/cite/harvard/6111 Richard Diebenkorn, #3, from Five Aquatints with Drypoint, 1978, Lift ground aquatint and drypoint on white wove paper, Harvard Art Museums, Cambridge. https://dartabase.art/cite/harvard/6122 Richard Diebenkorn, Untitled (Ocean Park), 1986, Charcoal and ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/36263