File:Moncrieff System - Scientific American - 1870.png
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Summary
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| Description |
English: The disappearing gun mount of Captain Alexander Moncrieff was described in the July 30, 1870 issue of Scientific American accompanied by this illustration. |
| Date | circa 1870 |
| Source | Scientific American, July 30, 1870 |
| Author | Unknown author |
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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 70 years or fewer. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929. |
| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:39, 27 April 2016 | | 5,668 × 1,892 (4.07 MB) | Rsteen (talk | contribs) | {{Information |Description ={{en|1=The disappering gun mount of Captain Alexander Moncrieff was described in the July 30, 1870 issue of ''Scientific American'' accompanied by this illustration.}} |Source =''Scientific American'', July 30, 18... |
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