Members of the delegation of the Czechoslovak miners attending the Kirov mine in Leninsk-Kuznetsk, meet with the miners, mine Ziminka 3-4 "in Prokopyevsk, inspect new equipment on hydraulic mining in a scientific research institute" Vniigidrougol "accompanied by the Director of the Institute of doctor of technical sciences V. S. Muchnik. Brigadier Czechoslovakian mines "Ludwig V. Penchak, a leading correspondence with the foreman of the mine" Ziminka 3-4 "A. Cherbaevym, visiting family A. Cherbaeva.