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From French charts to 1955 with additions to 1961. Depths shown by soundings, green tint, and isolines; relief by form lines and spot heights. 1973... Defense Mapping Agency Hydrographic Center.
prepared and published by the Defense Mapping Agency, Hydrographic/Topographic Center. Depths shown by isolines and soundings. Relief shown by cont... Defense Mapping Agency, Hydrographic.
From Chinese Government surveys from 1931 to 1934 (Outside soundings in slanting figures, and islands in light lines near lower border of the chart... U.S. Navy Hydrographic Office.
From surveys between 1888 and 1899 with additions from Chinese survey in 1928 ; published Apr. 1916, at the Hydrographic Office, under the authorit... U.S. Navy Hydrographic Office.
[U.S. Navy Hydrographic Office]. From surveys by the Hai Ho Conservatory Commision between 1905 and 1930 ; Depths on the bar, inside the 12 ft. curve, are from the 1921 Report of t... U.S. Navy Hydrographic Office.
From Japanese surveys to 1929 with additions to 1943. Depths shown by soundings and tints, relief by contours and spot heights. 1940 magnetic varia... U. S. Navy Hydrographic Office.
U.S. Navy Hydrographic Office. From a Japanese survey in 1932. Depths shown by soundings and tints; relief by contours and spot heights. 1935 variation compasses. Includes tidal ... U.S. Navy Hydrographic Office.
From British surveys between 1898 and 1903 ; published Feb., 1916, at the Hydrographic Office, under the authority of the Secretary of the Navy. De... U.S. Navy Hydrographic Office.
From British surveys between 1844 and 1907 (with additions from a Chinese Government chart of 1936) ; published Jan. 1916, at the Hydrographic Offi... U.S. Navy Hydrographic Office.
U.S. Navy Hydrographic Office. From Chinese Government surveys to 1931 and Japanese Government surveys to 1915. Depths shown by soundings and tints; relief by contours and spot h... U.S. Navy Hydrographic Office.