Category:Scientific American (1869)
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This category has only the following subcategory.
Media in category "Scientific American (1869)"
The following 3 files are in this category, out of 3 total.
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Knippelsbro - Scientific American - 1869.png 2,005 × 3,068; 4.01 MB
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Scientific-american-v21-n10-1869 - Fairlie Double Locomotive.png 3,303 × 1,094; 1.63 MB
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Gatling gun - Scientific American - 1869.png 2,046 × 1,368; 1.97 MB