Chōjō tankō ni kansuru ken
Subtitle: keika gaiyō
Contributors: Shina Keizai Chōsa Kanjikai
Publisher: Mantetsu] Keichō; Shina Keizai Chōsa Kanjikai
Published: 1934
Place of publication: [Shinkyō?
Language: jpn
Number of pages: 14
Subjects: Coal mines and mining
Notes: Cover title.

Confidential document (stamped).