Manufacturers such as the Bendix Corporation, Emerson Radio, Farnsworth Company, Hamilton Radio Corporation, Federal Telephone & Radio Corporation, Majestic Radio, Magnavox, Stromberg Carlson Company, and Zenith Corporation all used these plywood enclosures, which were made of birch and ash. The cabinet fronts were formed with a “dimpled” surface, first used in the Case Goods storage system and later the Eames Storage Units. While visually pleasing, it also served a purpose: it strengthened the panels and kept them from warping. Approximately 200,000 radio cabinets were produced in an assortment of designs. Manufacturing was discontinued after 1952.