The William Roberts SocietyWilliam Roberts:Object LessonIllustration © The Estate of John David Roberts. Reproduced with the permission of the William Roberts Society. Catalogue information based on the catalogue raisonné by David Cleall. For this and full details of the exhibitions cited, see the links below. ![]() Object Lesson, 19256 Pen and ink, 30.5 x 24.5 cm Tailpiece drawing for Lawrence, The Seven Pillars of Wisdom PROVENANCE: Bayard L. Kilgour Jr > Houghton Library, Harvard University (1966, MS Eng 1653, no. 44) EXHIBITION HISTORY: National Portrait Gallery 1988 Home page | Chronology | Obituaries | Bibliography | Collections Exhibitions | Gallery | News | Contact | The artist's house List of works illustrated on the site Catalogue raisonné: chronological | alphabetical |