Chōdaishi tanden danseiha tankō chōsa hōkoku
Publisher: Mantetsu Chōsabu
Published: 1941
Place of publication: [Dairen]
Language: jpn
Number of pages: 12
Subjects: Coal mines and mining
Notes: Cover title.

Confidential document (stamped).

"Ho 505; Chōshichō 54; Heishibun 320-38; In 50."