1. 蘇満方面五十万分一地誌圖 -- Soman hōmen chishizu 1:500,000, Maps Index Datasets Stanford University Public content 1939 and 1940. Stanford Geospatial Center. This polygon shapefile is an index to the map series, '蘇満方面五十万分一地誌圖 -- Soman hōmen chishizu 1:500,000.' This map series was originally produced by ... Stanford Digital Repository.