1. Kūchū shashin sokuzu yōzu Harumaheratō jūmanbun no ichi, Maps Index Polygon Stanford University Public content 1944. Stanford Geospatial Center. This polygon shapefile is an index to 1:100,000 scale maps of Halmahera (Indonesia), titled 'Kūchū shashin sokuzu yōzu Harumaheratō jūmanbun no ich...