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| Title | Maps of the districts of the Arkhangelsk port - "bacanitsa", "city", "strawbala", "savings", "export dam";Map of the Delta of the North Dvina River, the plan of the Berdyansk port (indicating the wind rose) |
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| Series | Documents of the Soviet period.1917-1933 |
| Fonds | Collection of documents of Professor I. Kh. Ozerov |
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