Adolph von Menzel, Head of a Bearded Man, 1884, Graphite, The Metropolitan Museum of Art, New York. https://dartabase.art/cite/met/334928

Adolph von Menzel, Doctor and Patient, 1899, Graphite, The Metropolitan Museum of Art, New York. https://dartabase.art/cite/met/334927

Carl Fredrik Reuterswärd, Bam Bam, 1958, Colored ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37755

Öyvind Fahlström, Study for Eddie (Sylvie's brother) in the Desert, 1966, Ink and pencil on notebook paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37763

Adolph von Menzel, Woman with a Crushed Velvet Hat, 1894, Graphite, The Metropolitan Museum of Art, New York. https://dartabase.art/cite/met/334929

Öyvind Fahlström, Notes for "The Little General", 1968, Ink, ballpoint pen, and pencil on two sheets of paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/36867