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St. Petersburg Province. The section of the exploratory well, produced in the Mikhailovsky Square, 2 sections in the mountains. Petersburg. 1909 - 1909. -3 L. .. - (Technical and Construction Committee of the Ministry of Internal Affairs .. St. Petersburg Province.). -
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Source of electronic copy: RGIA
Location of original: РГИА Ф.1293 Op.167 St. Petersburg lip D.370 |
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