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1967

Polish Army Topography Service

China West and Tibet. Plate 23, v.1

1958

Bartholomew, John

1:5m

No. 25

1917

Chen, Haoji

China North and Mongolia. Plate 20, v.1

1958

Bartholomew, John

1:5m

Tractus Fluviorum Irtisch

1745

Academy of Sciences, St. Petersburg

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Mongolia

1921

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1876

Stieler, Adolf

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1911

Habenicht, H.

1:8m

Inner-Asien & Indien, Nördliches Blatt

1892

Stieler, Adolf

West Siberia.

1833

Mahlmann, H.

1:6m