1. Gornopromyshlennaia i zavodskaia karta Aziatskoĭ Rossīĭ c ́pokazanīem ́gornykh ́zavodov ́i miestorozhdenīĭ poleznykh ́iskopaemykh ́ : 1909 g. Maps University Of Minnesota Public content 1909. Makarova, V. M. Relief shown by spot heights.; Map cut into 27 sections and mounted on cloth.; Prime meridian not known, but not based on Greenwich.; "Olekminskii?... publisher not identified.