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30 déc. 1921 - 1922 год - Специальная комиссия Советского труда и обороны обследовала Прокопьевский рудник.
Ajouté au bande de temps:
Угольные предприятия Прокопьевска
By
Дмитрий Мирошниченко
31 mai 2021
1
1
429
Date:
30 déc. 1921
Maintenaint
~ Il y a 103 ans
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