Honkeiko Baitetsu Kōshi tankō no hyōka
Subtitle: Nichi-Man seitetsu gōben kōshi sankō shiryō, Shōwa 3-nen Bujun tankō shirabe
Publisher: Minami Manshū Tetsudō Kabushiki Kaisha Keizai Chōsakai] Dainibu Jūkōgyōhan
Published: 1928
Place of publication: [Shinkyō?
Language: jpn
Number of pages: 32
Subjects: Coal mines and mining
Notes: Cover title.

Confidential document (stamped).