Bujun Tankō Manjin jūjiin gentai chōsa
Subtitle: Seitetsu Shiken Kōjō no bu
Publisher: Bujun Tankō] Sōmukyoku Shomuka Chōsagakari
Published: 1941
Place of publication: [Bujun
Language: jpn
Number of pages: 11
Subjects: Steel; Testing; Coal miners
Notes: Cover title.