Scale: 1:40,000[bar]. Linen backed chart of New York Harbour. Text "The Commercial Cable Company Mackay-Bennett System patented December 20 1887". "The Commercial Cable Company, Geo. G. Ward, vice-pres. and Geril, manager. Executive Offices, 253 Broadway, New York, September 3, 1894". Soundings in feet. Cable routes marked. Notice to owners abd masters of vessels. Text titled "Convention for Protection of Submarine Cables, signed March 14th 1884. By Representatives of the United States and other Principal Governments of the World"