Illinois Society of Architects · Chicago · leaf 675
er prominent defects. B or Third Quality.—B glass covers awider range than either AA quality or Aquality. It permits many of the defects in-herent to the process of making such aswaves, strings, lines, blisters, scratches,burns and other similar or equivalent defects. 671 WESTERN SANDBLAST… … TELEPHONES IGN!
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
