Washington, D.C. Department of the Interior, 1958. First edition. Staplebound Wraps. Quarto, pp 26 , illustrated with b/w photographs,includes bibliography. As New. Item #19953
For a Bureau of Mines Information circular, it is somewhat uncommon, and rather ambitious! It focuses on cutting rocks in the quarry and then finishing stone in mills, featuring Limestone, Marble, Sandstone, Granite and slate. The second half deals with cutting and polishing gems and semiprecious stones.