Unofficial Nonconformist Art Perestroika USSR LeningradOriginal vintage avant garde exhibition poster From Unofficial Art to Perestroika post war Leningrad avant garde 1948 1988 held at the Exhibition Complex on Vasilyevsky Island (St Petersburg) featuring the title text in bold red lettering hidden behind brick walls with the rest of the text around the edge. Soviet nonconformist art was Soviet art produced in the former USSR outside the control of the state during the Stalinist era and, in particular,