Miracle concrete: the great modern industry (1909)
Miracle Pressed Stone Co. · Miracle Pressed Stone Co. · leaf 16
A B D Showing the Narrow Spans in a Miracle Block. Showing the Wide Spans in a Single Air Space BlocV.. … Rock Face Interior, 9-inch Wall.Face Plate H-175X, H-175.Price $10.00. ANOTHER REASON FOR STRENGTH. The Miracle Block gains in strength over most singleair space blocks in the following particulars: The distance between connections of solid concrete isless. See illustrations on this page. In…
![An illustration from Current architecture: published in connection with a joint exibition [sic] held in Boston November 1916 (1916)](https://img.insideoutlibrary.com/img/200/ia-currentarchitect1916bost-103-160.webp)
