Keywords: Operational Navigation Chart E-4, 2nd edition.jpg 1 1 000 000 scale Operational Navigation Chart Sheet E-4 2nd edition Covers U S S R Lambert Conformal Conic Projection Standard Parallels 49 20N and 54 40N Center longitude 43E 1974-01 txu-pclmaps-oclc-8322829_e_4 jpg onc/ Defense Mapping Agency Aerospace Center St Louis Air Force Station Mo Covers 48N to 56N 34E to 52E PD-USGov ONCs uploaded by Revent Operational Navigation Chart Maps of the Soviet Union Maps with Lambert conformal conic projection JPG maps Operational Navigation Charts in the Perry-CastaƱeda Library |