Fourth-order bivalve (1/3 open) Fresnel lens made by Henry Lepaute in 1894 is on display U.S. Coast Guard 8th District Offices in N… | Lens, Maritime, New orleans
Jul 9, 2013 - The Maritime Heritage Program (NPS) helps interpret and preserve diverse facets of America's maritime heritage.
... top left - White Shoal; top right - Spectacle Reef; center - Grosse Point; bottom left - Rock of Ages; bottom right - Stannard Rock (From GLLKA Facebook page).