Robert Morris, Litanies (Litany of the Chariot), 1961, Ink on colored paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/34709 Robert Morris, [Untitled], 1969, Pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/34722 Robert Morris, Section of an Enclosure, 1971, Ink and pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/36076 Robert Morris, Blind Time XIII, 1973, Graphite on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/36080 Robert Morris, Footprints from Traveling. Limit of Reach, 1976, Powdered graphite and plate oil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37258 Robert Morris, Untitled from the Firestorm series, 1982, Charcoal, ink, graphite, and airbrushed pigment on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/36279 Robert Morris, Proposal for Anchorange Historical and Fine Arts Museum, Anchorage, Alaska, 1983, Brown ink and wash on graph paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/34036 Robert Morris, Blind Time III, 1985, Graphite on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/36976