Before revision: Daboll's trumpet were installed at the following during trials: Cape Ann Light - Thatcher's Island ..... " June 30, 1869 Execution Rocks Light - Long Island Sound January 25, 1869 Monhegan Light - Manana Island Sound Signal Station, Maine, April 4, 1870 Boston Light - Boston, Massachusetts, October 29, 1871 Portland Head Light-Portland, Maine November, 1871 Montauk Point Light - Long Island May 1, 1873 Highland Light - Cape Cod June 23, 1873History of American Steam Navigation, John H. Morrison, W. F. Sametz & CO., New York, 1908, pg 579 References Sources "Improved Fog Signal," New York Times, Oct. 26, 1866.
After revision: IslandDaboll's trumpet were installed at the following during trials: Cape Ann Light - Thatcher's Island ..... " June 30, 1869 Execution Rocks Light - Long Island Sound January 25, 1869 Monhegan Light - Manana Island Sound Signal Station, Maine, April 4, 1870 Boston Light - Boston, Massachusetts, October 29, 1871 Portland Head Light-Portland, Maine November, 1871 Montauk Point Light - Long Island May 1, 1873 Highland Light - Cape Cod June 23, 1873History of American Steam Navigation, John H. Morrison, W. F. Sametz & CO., New York, 1908, pg 579 References Sources "Improved Fog Signal," New York Times, Oct. 26, 1866.