File:Soemmerring 1810 telegraph overview.jpg
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[edit]DescriptionSoemmerring 1810 telegraph overview.jpg |
Svenska: Tab. V (following page 414). Overview of Sömmerring's electric telegraph. |
Date | |
Source | Illustration plates IV and V, following page 414, Denkschriften der Königlichen Akademie der Wissenschaften zu München (1809-1810), as scanned by the Internet Archive |
Author | Article written by Samuel Thomas von Sömmerring, plates signed "Chr. Koeck del. 1809. M. Aug." (lower left; artist Christian Koeck, 1758-1818) and "J. S. Walwert sculps." (lower right; engraver Jakob Samuel Walwert) |
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[edit]Public domainPublic domainfalsefalse |
This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
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This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 01:12, 27 January 2024 | 1,747 × 2,620 (392 KB) | Mblumber (talk | contribs) | change to grayscale, adjust levels | |
19:59, 1 September 2013 | 1,747 × 2,620 (275 KB) | LA2 (talk | contribs) | User created page with UploadWizard |
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Orientation | Normal |
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Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | GIMP 2.10.22 |
File change date and time | 20:11, 26 January 2024 |
Color space | sRGB |
Unique ID of original document | xmp.did:c610209f-a993-41c2-958c-f3fcfb653238 |