Original electrical trade vintage catalog for GRUBER BROTHERS INC. was located at 72-78 Spring Street, New York City, NY. Manufacturers of Fluorescent lighting fixtures. Recessed incandescent, reflectors, surfacelite, edgelite, exitlites and fresnelites surface types are shown. Disbound from a large 1948 electrical construction materials book, this unique old one page technical specifications brochure would display wonderfully matted and framed. A marvelous addition to your retro electric lighting equipment library.