Original electrical trade vintage catalog for AMERICAN DISTRICT TELEGRAPH COMPANY.  Main office and plant was located at 155 Sixth Avenue, New York City, NY.

Manufacturers of ADT Protection Systems. Products include Watchman's Compulsory Tour System, Manual Fire Alarm System, Waterflow Alarm and Sprinkler Supervisory System, Aero Automatic Fire Alarm System and ADT Interior Fire Alarm System are all featured. Has numerous product images with detailed descriptions, illustrations and applications provided. Unbound from a large 1935 architectural product catalog, this unique old one-page brochure would display beautifully matted and framed.  A fantastic addition to your vintage construction materials library.