Plan r.Don when it fell into the Sea of ​​Azov

Plan r.Don at the fall of it into the Sea of ​​Azov.- -.-Second sex.XVIII century.;Kart.Op.178;30x46;Additional Agreement No. 1 of May 21, 2021 to the contract.No. 90-19 dated August 27, 2019 (Ban)..Electronic copy source: ban