日本海軍関係教練書参考書. [Nihon Kaigun kankei kyōrensho oyobi sankōsho]. [Textbooks and Reference Books at the Japanese Imperial Naval College].
[Hiroshima]. 海軍兵学校. [Kaigun Heigakkō]. [1924 - 1941]. Three volumes, 21.9 x 15 cm, three folding charts, text diagrams and illustrations, folding world map dated December 1937 bizarrely shows in a semi-circular dotted line of the area where one could travel with same fare, which extends to the mid-Aleutian Islands in..... More