Miracle concrete: the great modern industry (1909)
Miracle Pressed Stone Co. · Miracle Pressed Stone Co. · leaf 19
only, can the best cement blocks be made. TheMiracle Machinery allows for no other method. TIGHT JOINTS WITH MIRACLE BLOCKS. See that groove in the end of every Miracle Block?It insures an absolutely tight joint. When blocks are placedend to end, these grooves form oval or oblong openings thefull… … One-Half Height Rock Face 9-inch Block.Face Plate H-90. Price $6.00.
![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)
