Miracle concrete: the great modern industry (1909)
Miracle Pressed Stone Co. · Miracle Pressed Stone Co. · leaf 93
Illustration No. 6.Showing mechanism of inner shell of molds for making tile.Expanded and contracted. Clarinda, Iowa, Dec. I 7, 1906.Miracle Pressed Stone Co., Minneapolis, Minn. Gents:—The tile molds I find to be just the thing. Wehad a good sale of the tile, it was late in the year to buy…
