San Francisco : Architect and Engineer, Inc · leaf 539
THE CONDOR CO^ 58 Sutter Street San Francisco, Calif. 138 77/, ARCH1TI<:CT an,l ENGINEER February, 1930 TRUSCON DONOVANAwning Type Steel Windows … for Health and Safety Diffused sunlight and draughtless ventilationare provided for schools, offices and otherbuildings by Truscon Donovan AwningType Steel Windows. They are operated verysimply without window poles by the move-ment of the lower sash which controls theupper sash. The shades on the…
Architecture · Building
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