Illinois Society of Architects · Chicago · leaf 256
Size—Por Sills and Showing Ventilator Setting-eight sheets in thickness to the inch and ispractically uniform in thickness, but show-ing in a measure the variation in color ofopalescent or opal glass. Opalescent Glass varies in thicknessfrom 1, Hj to K^ and also varies in coloralmost witliout…
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.