File:800px-Heliograph.jpg

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800px-Heliograph.jpg ‎(800 × 523 pixels, file size: 123 KB, MIME type: image/jpeg)

NOAA's Historic C&GS (Coast and Geodetic Survey) Collection. Image ID: theb1632

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	07:39, 14 May 2009		800 × 523 (123 KB)	Cmditradmin (talk \| contribs)	NOAA's Historic C&GS (Coast and Geodetic Survey) Collection. Image ID: theb1632

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