Original heating trade vintage catalog for SHEPLER MANUFACTURING COMPANY, was located at 1312-14 Sheffield Street, Pittsburgh, PA. Manufacturers of electric heaters and ventilating fans. Introducing a completely new, improved 8 inch automatic fan for small rooms. Designed specifically for bathrooms, kichenettes and power rooms. Disbound from a large 1951 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 equipment library.