This is a 1930s vintage letterhead from the State of California "State Board of Equalization," the government office responsible for state sales taxes, and provides requested information on "Marine Radio Service, Inc." The letterhead is dated 1938. Condition: All radio related paper items offered have scattered handling wear, creases etc. Please see scan and contact me with any questions. See my listings for a large selection of vintage radio related paper items (regarding crystals, radio station letterhead, correspondence, etc), as well as other unusual, interesting and fun vintage items. Multiple purchases are combined with a single postage charge. All items are shipped flat, sleeved in plastic, and packaged between sturdy cardboard.