Illinois Society of Architects · Chicago · leaf 295
otective coveringsshall include any covering permitted underparagraphs (b), (c) and (d) or the follow-ing: For Metal Columns: Hollow units of clay tile, two (2) inches thick, no fill.Units of concrete, two (2) inches thick, no fill.Portland cement, lime or gypsum plaster, one (1) inch thick on…
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
