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Sado Island August 2008
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Comment:
The Sado gold mine opened in 1601 and produced gold until 1998. About half of the 80 tonnes of gold and 2000 tonnes of silver were retrieved in the Tokugawa shogunate (before 1800's). This is a water pump similar to Archemides screw pump design.
IMG_0256.JPG - 3648 x 2736 - (2.56MB)
23/08/08 11:01 AM
Album last updated on 26/08/08 10:34 AM
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