https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/8847147

United States Patent Office, Washington, D. C.

Original public domain image from Smithsonian

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    1200 x 777 px
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    5588 x 3619 px | 300 dpi
  • High Resolution (HD)
    5588 x 3619 px | 300 dpi

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