EB1911_-_Lighthouse_-_Fig._39.—Pendeen_Apparatus._Plan_at_Focal_Plane.jpg (359 × 308 pixels, file size: 84 KB, MIME type: image/jpeg)

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Summary

Description
English: Lighthouse - Pendeen Apparatus. 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 AnonymousUnknown author

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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:EB1911_-_Lighthouse_-_Fig._39.%E2%80%94Pendeen_Apparatus._Plan_at_Focal_Plane.jpg

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Lighthouse - Pendeen Apparatus. Plan at Focal Plane

Items portrayed in this file

depicts

lighthouse

Pendeen Lighthouse

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current19:55, 29 October 2020Thumbnail for version as of 19:55, 29 October 2020359 × 308 (84 KB)DivermanAUUploaded 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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