Licensing
Source: Penche, Dr. Ingeniero de Minas; 1998
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External file, license unclear.
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This file is from an external source, the usage rights are unclear.
Only for internal use.
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| Date/Time | Thumbnail | Dimensions | User | Comment |
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| current | 12:26, 7 June 2010 |  | 3,508 × 2,479, 64 pages (4.69 MB) | ***** (***** | *****) | |
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