Willem van Genk, Untitled (World Airport), The Hague, Netherlands, 1965, Mixed media on assembled millboards, Unframed: 44 ¾ x 46 ¾ inches (113,5 x 119 cm), Framed: 46 x 48 ¼ x 1 inches (117 x 122,5 x 2,7 cm). Collection Foundation Willem van Genk, Museum Dr. Guislain, Ghent, 210302106. Photo: Guido Suykens, Ghent