United States, Hydrographic Office. Compiled from various Government Charts to 1935. Depths shown by soundings and tints, relief by form lines and spot heights. 1935 magnetic variatio... U. S. Navy Hydrographic Office,.
United States, Hydrographic Office. Compiled from the latest information. Depths shown by soundings, relief by form lines and spot heights. 1935 magnetic variation compass. Shows dept... U. S. Navy Hydrographic Office,.
United States, Hydrographic Office. Compiled from the latest information. Depths shown by soundings, relief by hachures. 1920 magnetic variation compass. Shows depths, shoals, drainag... U. S. Navy Hydrographic Office,.
United States, Hydrographic Office. From Japanese surveys to 1933 with additions from other sources to 1935. Depths shown by soundings and tints, relief by contours and spot heights. ... U. S. Navy Hydrographic Office,.
United States, Hydrographic Office. From Chinese I.M.C. Service and Japanese surveys between 1904 and 1909 (with extensive corrections by the Lower Liao River Conservancy Engineers, 1... U. S. Navy Hydrographic Office,.
United States, Hydrographic Office. From British surveys between 1899 and 1901. Depths shown by soundings, relief by form lines and spot heights. 1940 magnetic variation compasses. Sh... U. S. Navy Hydrographic Office,.
United States, 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,.
United States, Hydrographic Office. From Japanese surveys to 1937 with additions and corrections 1943. Depths shown by soundings and tints, relief by contours and spot heights. 1945 m... U. S. Navy Hydrographic Office,.
United States, Hydrographic Office. From Japanese surveys to 1937; the portion in hairline and soundings in slanting figures are from a smaller scale chart. Depths shown by soundings ... U. S. Navy Hydrographic Office,.
United States, Hydrographic Office. From Japanese surveys to 1932. Depths shown by soundings, relief by contours and spot heights. 1940 magnetic variation compass. Shows depths, shoal... U. S. Navy Hydrographic Office,.