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Section of revolving catoptric light; plan of revolving catoptric light

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Section of revolving catoptric light; plan of revolving catoptric light

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Summary


Illus. in: Plates Accompanying Report of the Secretary of the Treasury on the Improvements in the Lighthouse System and Collateral Aids to Navigation, detail of plate 16, (lower left).
On lower right: Lith. by Ed. Weber & Co. Balto.
On title page: Senate Document no. 488, 1st Session, 29th Congress, 1846.

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Date

01/01/1846
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Library of Congress
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