met-modern-art:Woman Leaning on a Chair (The Artist’s Sister) by Umberto Boccioni, Modern and
met-modern-art:Woman Leaning on a Chair (The Artist’s Sister) by Umberto Boccioni, Modern and Contemporary ArtMedium: Graphite on paperBequest of Lydia Winston Malbin, 1989Metropolitan Museum of Art, New York, NYhttp://www.metmuseum.org/art/collection/search/485519 -- source link