1. Nihyakumanbunnoichi Nanpōzu, Maps Index Datasets Stanford University Public content 1941, 1942, 1943, and 1944. Stanford Geospatial Center. This polygon shapefile is an index to 1:2,000,000 scale maps of Southeast Asia, titled 'Nihyakumanbunnoichi Nanpōzu -- 二百万分一南方圖.’ This map series w... Stanford Digital Repository.