Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1927. Softcover. Item #45694
92 pages with photographic plates, some as foldouts, maps, tables, charts, foldout section sheets and index, plus the two folded map plates in the rear pocket. Bound in original stiff gray paper covers with lettering printed in black. Stamp of geologist Siemon Muller on the front cover. Japanese paper repair to the lower spine. A very good plus copy.