United States, Office of Strategic Services., Geography Division. drawn in Geography Division, O.S.S. "Map no. 1102 October 30, 1942.". OSS.
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United States, Office of Strategic Services., Research and Analysis Branch. compiled and drawn in R & A, OSS. Relief shown pictorially. "21 April 1942." "Map no. 434.". OSS.
United States, Office of Strategic Services., Geography Division. compiled and drawn in the Geography Division, O.S.S. Relief shown by hachures; depth shown by soundings. "August 28, 1942." "Map no. 954.". OSS.