File:EB1911 - Lighthouse - Fig. 43a.—Île Vierge Apparatus and Lantern. Plan at focal plane.jpg
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Summary
| Description |
English: Lighthouse - Île Vierge Apparatus and Lantern. Plan at focal plane |
| Date | |
| Source | Encyclopædia Britannica (11th ed.), v. 16, 1911, "Lighthouse" article, pp. 631 ff.; modified from https://www.gutenberg.org/files/41472/41472-h/41472-h.htm#ar2 |
| Author | Anonymous |
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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 | 22:12, 29 October 2020 | | 520 × 603 (50 KB) | DivermanAU | Uploaded a work by {{anonymous}} from Encyclopædia Britannica (11th ed.), v. 16, 1911, "Lighthouse" article, pp. 631 ff.; modified from https://www.gutenberg.org/files/41472/41472-h/41472-h.htm#ar2 with UploadWizard |
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