Original electrical trade vintage catalog for SIGNAL ENGINEERING & MANUFACTURING COMPANY.  Main office and plant was located at 154 West 14th Street, New York City, NY.

Manufacturers of Wheelock Apparatus. Products include Code Calling System, Wheelock Signals, Wheelock Bells, Wheelock Cow Gong, Wheelock Chime, Wheelock Duplex Horns and Wheelock Sounder and Buzzer. Wheelock Interior Fire Alarm Systems and Wheelock Relays are all featured. Has numerous product images with detailed descriptions, illustrations, applications, specifications and dimensions provided. Unbound from a large 1935 architectural product catalog, this unique old twelve-page brochure would display beautifully matted and framed. Awesome cover graphics. A fantastic addition to your vintage construction materials library. Pages may be loose and contain residual glue on edge.