Air navigation chart V 70 (series). 1. [Union of Soviet Socialist Republics, east to Prince Patrick Island, Alaska, and United States.] Scale 1″=70 naut. m. (1:5,107,200) at lat. 63° N. contour interval 1,000, 3,000, 5,000, 7,000, 10,000, 15,000 and 20,000 ft.

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