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In the next film Kõps happens to be in the land of stones.
Documentary about oil shale production and use in the Soviet Estonia.
Mining engineer Artur Aleksander Linari-Linholm has recorded his work in Johannesburg, South Africa. He has filmed the research laboratory of the diamond mining company De Beers as well as the lab workers.
Mining engineer Artur Aleksander Linari-Linholm's parents, scientific research and a foreign trip with his wife to the most important capitals in Europe in 1939.