Philatelic First Day Cover with cachet titled, "Atoms for Peace." The cachet depicts a structure called the Atom Smasher, a Van de Graaff electrostatic nuclear accelerator operated by the Westinghouse Electric Corporation at their Research Laboratories in Forest Hills, Pennsylvania. The Atom Smasher was instrumental in the development of practical applications of nuclear science for energy production. The cachet also includes a depiction of an atomic model, a diagram connecting one point of energy to modes of transportation and housing, and a quote by former President Eisenhower, "America will demonstrate to people everywhere the peacetime use of atomic energy, harnessed for the improvement of human living." The envelope's stamp depicts two Earths representing nuclei of the atomic shell model. The stamp's border includes the quote, "To find the way by which the inventiveness of man shall be consecrated to his life."