Chuck Close, Study for Self-Portrait, 1968, Gelatin-silver print, ink, pencil, and pressure-sensitive tape on board, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37904

Chuck Close, Robert (maquette), 1973, Gelatin silver prints with pressure-sensitive tape, airbrush, pen, ink, pencil and colored ballpoint pen on foamcore, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33677

Chuck Close, Robert, 1977, Ink, colored ink, felt-tip pen, and pencil on gelatin silver print with pressure-sensitive tape on foamcore, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33685

Chuck Close, Self-Portrait, 1997, Color instant print (Polaroid) mounted on foamcore with pressure-sensitive tape, ink, felt-tip pen, graphite and oil paint on board, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/36049

Chuck Close, Merce Cunningham, 2004, Color pigment print (from 20 x 24 Polaroid), Harvard Art Museums, Cambridge. https://dartabase.art/cite/harvard/5560