c. 1930's american illuminated electric sign number originally used in sign making over the entrance of a chicago area theater or arena that displays the names of featured attractions and principal. the number is made from a riveted galvanized sheet metal with deep raised edges. measures approx. 24 inches in height by 5 1/2 inches in depth. the edge confines all the light within the letter so that the light rays are projected straight out from the edge, making the letter stand out bright and luminous. the letters originally were mounted on a framed iron band slide. original red enamel finish worn and weathered, creating a very nice patina with visual character. the asking price reflects the letter depicted in the image above. the letters were possibly made by the chicago stage lighting co. 25 watt bulbs are sufficient for each porcelain socket. original rayon cord no longer attached.