[En el reverso el texto]: In their eight great Chicago plants Grigsby-Frunow Company, manufactures of Majestic Radio Receivers employ more than 9.000 people. Nearly two millian square feet of floor space are used to make every piece and part of every Majestic set.
[Mecanografiado]: Chicago, I11.1931 . Cia. De Majestic Radio . Loading Radio-crats into freight-cars on the Ferrocarriles de los Chicago, Milwaukke, St. Paul y Pacifico, in norte-west seccion de ciudad de Chicago, I11. The load 30 Freight-Cars de Radios in one-day here

Vista general de la Mina San Vicente en Puertollano; puede verse un tramo del ramal minero del ferrocarril, almacenes y, a la derecha, las instalaciones de la fábrica de carbón.