Illinois Society of Architects · Chicago · leaf 37
PERIENCE of successful architects, engineersand builders confirms the recommendation of the UnitedStates Gypsum Companys products for all types of building. U. S. G. Pyrohar Gypsum PartitionTile is fireproof. Gypsum! ile is the onlymaterial that has ever passed the Under-writers Laboratories fire…
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
