signed 'Kramer' (lower right); titled 'HOBBIES/VICES' (lower left); signed again, titled again and dated 'David Kramer HOBBIES/VICES 2009' (on the reverse) signed and dated again 'Kramer 2009' (on the backing board). signed 'Kramer' (lower right); titled '(HOUSE PARTY. ' (lower left); signed again, titled again and dated 'David Kramer House Party 2009' (on the reverse) signed and dated again 'Kramer 2009' (on the backing board). signed and titled three times 'Kramer (SPACE PROGRAM) Kramer Kramer' (lower center); signed again, titled differently or inscribed(?) and dated 'Reflections on the Moon Kramer 2008' ; signed and dated again 'Kramer 2008' (on the backing board)