Russian map of the Asia 1737/ From the book: Постников А.К. Карты земель Российских: очерк истории географического изучения и картографирования нашего отечества. - М.: Наш дом - L`Age d`Homme, 1996. The map shows that the RUSSIA is dislocated to the west of the Urals meridian (60?), and east of this line there is TATARTIA RUSSIN SIBIRIA. But Russia itself is limited with the dotted line, which goes in the beginning east of the Urals mountains, then along the Kama river till the Volga river.