Illinois Society of Architects · Chicago · leaf 277
x Cement Flashing Block> Patent issued Sept. 24. 1912. Canadian, March 18, 1913. The Block D is to be built in the fire walls and chimneys. Itreplaces two courses of bricks. As the usefulness will be impaired if notproperly laid, care must be taken to put Base A flush with top of concrete orroof… … Duplex Flashing Block
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
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