Although not an accredited architect, Buckminster Fuller was best known for his many experiments in building design and his philosophy of architecture. Adhering to his "dymaxion" principle, which called for maximum results from a minimum of material and energy, he was an early advocate of prefabrication and modular construction. The most famous of Fuller's achievements was the geodesic dome, which artist Boris Artzybasheff wittily depicts here as the structure of Fuller's face and skull. Patented in 1947, this spherical structure required no internal support, thus creating an unobstructed interior space. In 1967, one of Fuller's domes served as the United States pavilion at the world exposition in Montreal, where it became a symbol of America's tradition in technical innovation.