Original 1970 window trade vintage catalog for the ASSOCIATED DALLAS LABORATORIES. (A - D - L).  Main office and laboratory were located in Dallas, TX.

The Associated Dallas Laboratories is an independent testing organization of recognized integrity for 46 years-accepted for expert court testimony, city, state and federal agency approved including Departments of Defense (army, navy, air force, medical); Health, Education % Welfare; and Housing and Urban Development. 

Laboratory for Chemical Analysis, Physical Testing, Window, Door and Glass Testing.

Unbound from a large rare 1970 Architectural Catalog File compilation, this unique old four-page technical brochure would display beautifully matted and framed.  A fabulous addition to your retro window library.