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Pole signal with tin cone for reflecting sunlight Picture

Pole signal with tin cone for reflecting sunlight

Pole signal with tin cone for reflecting sunlight. Constructed by survey crews under direction of Ferdinand Hassler. Sketch by Assistant John Farley - view looking to south across Long Island Sound

Photo Category: Geodesy - Triangulation - Towers - Wooden
Photo Location: Connecticut shore
Photo Date: 1837

Author: NOAA John Farley collection/ NOAA

License: Public Domain Mark 1.0 (Public domain)
640 x 411 39.06 KB
1280 x 822 193.26 KB
1620 x 1040 410.43 KB
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Added On
18th October 2015
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