Manufacturer: Homer Laughlin China Company
Description: These colorful dishes were given out in movie theaters in the 1930’s and early 40’s. The vibrant color was achieved with materials of high atomic number that included some, which were radiactive including uranium oxide. A minute amount of radiactivity can usually be detected at the surface. They are quite common and are often encountered in antique shops. A detailed description of the dishes, their production and history as well as references to the radioactive component can be found on the the wikipedia website.