DescriptionAlexander von Humboldt - Diagram of a cross-section of the earth's crust - rectified.jpg
English: Alexander von Humboldt, diagram of a cross-section of the earth's crust, 1841. From Heinrich Berghaus, Physikalischer Atlas (Gotha: J. Perthes, 1852).
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This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: Alexander von Humboldt - 1841 - Diagram of a cross-section of the earth's crust.jpg. Modifications made by Sette-quattro.
This is a faithful photographic reproduction of a two-dimensional, public domain work of art. The work of art itself is in the public domain for the following reason:
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The author died in 1871, so this work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 100 years or fewer.
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The official position taken by the Wikimedia Foundation is that "faithful reproductions of two-dimensional public domain works of art are public domain". This photographic reproduction is therefore also considered to be in the public domain in the United States. In other jurisdictions, re-use of this content may be restricted; see Reuse of PD-Art photographs for details.
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