PETRUS Marco (Rimini, 1960 - ) Upside down 1 2008 oil on canvas cm. 250 x 170 Certificate issued by the artist "Marco Petrus. Trieste al centro", Silvana Editoriale, Milan, 2009, pp. 40-41 Exhibition: Ex Pescheria Trieste, Salone degli Incanti, 25 October-29 November 2009 Titled, signed, dated "Upside down, M. Petrus, 2008"; stamp of Italian Factory (on the reverse)