Original locker trade vintage catalog for AMERICAN DEVICE MANUFACTURING. COMPANY. Main office and factory was located at 1010 W. Broadway, Steeleville, IL. Manufacturers of apartment style mail boxes, for use in schools, apartments, offices, dormitories, hospitals, military bases, hotels and colleges. Saves time wherever distribution of mail is required. Offers security, assures privacy. Model 100R, Front loading 100F mail lock boxes, Sentinel with combination, Embassy with keylock, Embassy with combination are shown. Letter sets, chutes are also shown. Unbound from a large 1964 architectural catalog, this unique old eight page technical specifications brochure would display beautifully matted and framed. A fantastic addition to your retro locker collection. Pages are detached and may contain a small amount of residual glue on edge.