"The map of the Constantinople Strait with the testimony of fortresses, anchor places, depths and with a description of the free...

"The map of the Constantinople Strait with the testimony of fortresses, anchor places, depths and with a description of the freedom of swimming and passage, removed and composed by the fleet by Captain Lieutenant Sergey Pleshcheyev in 1775."Copyed Fedor Cherny.- -.-XVIII century.;Kart.Op.43;52 x 103;Additional Agreement No. 1 of May 21, 2021 to the contract.No. 90-19 dated August 27, 2019 (Ban)..Electronic copy source: ban