AN ENGLISH CUBISTWILLIAM ROBERTS:Guarding the Masterpiece studyIllustration © The Estate of John David Roberts. Catalogue information based on the catalogue raisonné by David Cleall. For this and full details of the exhibitions cited, see the links below. Any auction prices quoted may not include all fees and taxes, such as VAT and Artist's Resale Right charges. ![]() Guarding the Masterpiece study, 1964 Pencil, 17.8 cm x 12.7 cm PROVENANCE: Estate of John David Roberts, accepted by HM Government in lieu of inheritance tax and allocated to Tate 2007 (T12699) EXHIBITION HISTORY: Gillian Jason Gallery 1990 Home page | Chronology | Bibliography | Collections | Exhibitions News | Gallery | Auction results | The artists house | Contact List of works illustrated on the site Catalogue raisonné: chronological | alphabetical |