File:An Elementary Treatise on Optics image 137.png

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English: An Elementary Treatise on Optics image 137
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Source https://en.wikisource.org/wiki/Page:Optics.djvu/228
Author Henry Coddington

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Public domain
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.

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Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:An_Elementary_Treatise_on_Optics_image_137.png

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current13:02, 29 June 2023Thumbnail for version as of 13:02, 29 June 2023422 × 140 (4 KB)Sp1nd01Uploaded a work by Henry Coddington from https://en.wikisource.org/wiki/Page:Optics.djvu/228 with UploadWizard

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