United States, Board of Economic Warfare., Enemy Branch. and United States, Office of Strategic Services., Research and Analysis Branch. Board of Economic Warfare, Enemy Branch ; drawn in R. and A., OSS. "12 March 1943." Also covers Southeast Asia. "Map no. 1400." "Project no. EP 162.". [Office of Strategic Services].
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United States, Office of Strategic Services., Research and Analysis Branch. and United States, Office of Strategic Services., Reproduction Branch. R & A, OSS. "29 July 1945." Also covers most of Thailand, and adjoining portions of Burma and China. "Adapted from: L'Indochine, Carte Linguistique... Lithographed in the Reproduction Branch, OSS.