Model No. 7. Karagandaracel. A third of Lenincoal. The Schacht No. 260 m main horizon plan

Model No. 7. Karagandaracel. A third of Lenincoal. The Schacht No. 260 m main horizon plan

 

Creation time: 1937-1939 yy.

Share:

Comments

Add comment

Please, write something!

Image