Okinawajima nanbu : Nihon Nansei Shotō = Southern portion of Okinawa Sima : Nippon Nansei Syotō.
沖縄島南部 : 日本西南諸島 = Southern portion of Okinawa Sima : Nippon Nansei Syotō. | Southern portion of Okinawa Sima
Possibly a draft prepared for reproduction by Hydrographic Office, U.S. Navy. Relief shown by contours and spot heights. Depths shown by soundings. A seal "Hydrographic Office, U.S. Navy"; and "Emergency reproduction of Japanese charts"--On a piece of paper pasted on map. "From H.O.N.M.: from other sources: Printed by H.O., Aug '44 [date handwritten]"; also "Soundings and heights in meters"; and "Fathoms to meters" (table)--Printed...
United States. Hydrographic Office - Japan. Kaigunshō. Suirobu