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1992 · 60366 — Irvine CA: Consolidated Placer Dredging Co. 1992. 8vo. xix 1 315 1 pp. With photo plates text illustrations photo illustrations diagrams charts graphs throughout. Brown cloth gilt lettering front cover spine minor bumping at foot of spine w/ d.j. wraparound photo cover art of dredge working in a river delta minor shelfwear still NF/NF copy inscribed by author on ffep. from the library of Columbia Steel Casting Co. First edition stated & signed of the first complete text on placer mining issued for miners and mining operators since the Great Depression. He details how to explore new prospects methods of evaluation necessary equipment feasibility studies dredging or other equipment for placer mining mineral jigs and his work against the massive damage caused by illegal miners working placer deposits in South America Africa and Southeast Asia. Consolidated Placer Dredging Co., hardcover