Miracle concrete: the great modern industry (1909)
Miracle Pressed Stone Co. · Miracle Pressed Stone Co. · leaf 16
Special Rock Face, 12-in Block,Face Plate H-192.Price $7.00. THE MIRACLE BLOCK ADDS DOUBLE STRENGTH TO THE WALL. … Special Rock Face. 12-in. Block.Face Plate H-194.Price $7.00. No one doubts the strengthening value of an air spacewhen in the form of a hollow iron tube. In the form of astone column the principle is the same, and the hollow columnis stronger than if it were solid. In the form of a cementwall,…
![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-104-161.webp)
