Miracle concrete: the great modern industry (1909)
Miracle Pressed Stone Co. · Miracle Pressed Stone Co. · leaf 36
A Vertical Tooled Block. … 27 or 3%-i and HALF-HEIGHT BLOCKS.Exhibit I. The most attractive feature ofhalf-height blocks is that it breaksthe monotony of regular, equal-sizeblocks. In making half-heightinch blocks, the regular 1backs are used, fillers being droppedover the cores. The special faceplate, which is half rock and…
