File:The wonders of optics - Fig 47.png
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Summary
| Description |
English: The Herschellian Telescope. |
| Date | |
| Source | https://en.wikisource.org/wiki/Page:The_wonders_of_optics_(1869).djvu/172 |
| Author | Fulgence Marion |
Licensing
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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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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 09:18, 11 September 2021 | | 2,069 × 829 (174 KB) | Sp1nd01 | Uploaded a work by Fulgence Marion from https://en.wikisource.org/wiki/Page:The_wonders_of_optics_(1869).djvu/172 with UploadWizard |
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