Thomas Struth Thomas Struth (*1954), hand-signed poster of the Kunstmuseum Bonn 1995, ''StraĂźen'', offset, somewhat faded signature lower right, mounted on cardboard, enclosed hand-signed poster by Claes Oldenburg (1929-2022), ''Eine Anthologie'', Bonn 1996, signature heavily faded lower right, mounted on cardboard, each approx. 85 x 60 cm Contemporary Arts