1. Iboki / (Kūchū shashin sokuzu Rikuchi Sokuryōbu) Sanbō Honbuイボキ / (空中寫真測圖陸地測量部) 参謀本部 Author: Japan. Rikuchi Sokuryōbu, cartographer and Japan. 陸地測量部, cartographer Format: Map Language: Japanese Published: Shōwa 18 [1943]