Project of the connection of the river.Lovati, Dvina and Dnieper

Project of the connection of the river.Lovati, Dvins and Dnieper / Brovere (comp.).- -.-First sexes.XVIII century.;Kart.Op.245;125x49;Additional Agreement No. 1 of May 21, 2021 to the contract.No. 90-19 dated August 27, 2019 (Ban)..Electronic copy source: ban