Description
Publisher not stated, Published date: circa mid 1980s. Softcover booklet, staple bound paper covers; 8 pp; 22 cm. Illustrated with black and white technical diagrams showing assembly and component layouts of the machine.
Rare, out-of-print & unusual books · Since 1997
15
![Dry Gold Recovery Machine Coolgardie Special [Drywasher Manual], photograph 1 of 5](/_next/image?url=https%3A%2F%2Fepilonian.s3-us-west-1.amazonaws.com%2F20260304013%2F20260304013_001.jpg&w=3840&q=75)
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Catalog notes
Condition & notes
In very good condition. Paper covers have light creasing and shelfwear with mild toning to edges; staple binding firm; interior pages lightly toned but otherwise clean and unmarked. Instruction manual for the "Coolgardie Special" dry gold recovery machine, a portable drywasher designed for recovering placer gold in dry desert environments without the use of water. The booklet explains the design and operation of the machine, which uses a side shaking motion combined with blower air flow and riffle trays to separate gold from dry material. Includes assembly instructions, operating instructions, and diagrams identifying components such as blower assembly, crank shaft assembly, pulley assemblies, runners, grizzly tray, feed gate, and air box. The text also includes field operating advice for prospecting in dry regions, notes on re-running tailings, dust protection precautions, and general guidance for small scale placer mining.
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