United States, Hydrographic Office. Relief shown by spot heights, form lines, and soundings. "Small corrections printed: Aug. '45." "Soundings in fathoms, heights in feet." "No. 5950.". Hydrographic Office.
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United States, Hydrographic Office. Relief shown by contours and spot heights. Depths shown by bathymetric soundings. "No. 528." Irregularly shaped. Hydrographic Office.
United States, Hydrographic Office. Hydrographic Office, U. S. Navy. Relief shown by soundings. No. 5800. Hydrographic Office.
United States, Hydrographic Office. Hydrographic Office, U.S. Navy. Hydrographic chart depth shown by soundings. In upper left/bottom right corner: No. 823-6. Hydrographic Office.
United States, Hydrographic Office. Hydrographic Office, U.S. Navy. Hydrographic chart depth shown by soundings. In upper left/bottom right corner: No. 823-6. Hydrographic Office.
United States, Hydrographic Office. Hydrographic Office, U.S. Navy. Hydrographic chart depth shown by soundings. In upper left/bottom right corner: No. 823-6. Hydrographic Office.
United States, Hydrographic Office. Relief shown by spot heights and soundings. "Soundings in fathoms, heights in feet." "No. 5504.". Hydrographic Office.
United States, Hydrographic Office. Relief shown by hachures and spot heights. Depths shown by bathymetric soundings. "No.2022.". Hydrographic Office.
United States, Hydrographic Office. Hydrographic Office, U.S. Navy. Hydrographic chart with depth shown by bathymetric soundings and height shown by contours and spot heights. "2896.". Hydrographic Office.
10. North America
United States, Hydrographic Office. Compiled from the latest United States Coast surveys ; published Oct., 1885 at the Hydrographic Office, under the authority of the Secretary of the... Hydrographic Office.
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