http://collections.mfa.org/internal/media/dispatcher/846745/resize%3Aformat%3Dfull;jsessionid=484D37818D18B9C90938F3C49C18E112Sketch for Prometheus; Various sketches: figures within circles (verso)1917–21John Singer SargentCharcoal and graphite pencil (verso) on paperDrawings47.5000000000 Centimeterhttp://collections.mfa.org/objects/detailsrdf/238416;jsessionid=484D37818D18B9C90938F3C49C18E112