Maps cover Northern Mariana Islands. Based on the survey by Japanese Navy 1916 - 1924. Summary of field survay (location, geographical features, population, food and water supply, sanitary conditions, etc.) printed in red on the map and margin. Scale: [1.] Farallon de Pajaros (1:17,860) -- [2.] Maug Islands (1:20,200) -- [3.] Asuncion (1:21,000) -- [4.] Agrihan (1:71,430), inset (1:35,000) -- [5.] Pagan (1:51,000), inset (1:46,900) -- [6.] Alamagan (1:32,600) -- [7.] Guguan (1:22,000) -- [8.] Sarigan (1:35,000) -- [9.] Anatahan (1:53,000) -- [10.] Farallon de Medinilla (1:29,000) -- [11.] Saipan (1:132,100) -- [11d.] Saipan Harbor (1:29,041) -- [12.] Tinian (1:132,100) -- [12d.] Tenian Harbor (1:24,200) -- [13.] Aguigan (1:132,100) -- [14.] Rota (1:100,000) -- [14d.] Rota Harbor (1:35,000). Text in Japanese. Kita Mariana Shotō gaikyō. 北マリアナ諸島 概況. "Gunji gokuhi (senchi ni arite wa gunji himitsu)"--Margin. "軍事極秘 (戦地ニ在リテハ軍事秘密)"--Margin.