Tripod signal with tin cone for reflecting sunlight.
At signal West Base, west end of Great Fire Island Base Line.
Constructed by survey crews under direction of Ferdinand Hassler.
Sketch by Assistant John Farley - view looking to east
Image ID: theb2458, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection Location: Fire Island, New York Photo Date: 1837? Credit: NOAA John Farley collection