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69652, Lines of Equal Magnetic Declination and of Equal Annual Change in the United States for 1930, General Map Collection

Lines of Equal Magnetic Declination and of Equal Annual Change in the United States for 1930

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  • Map/Doc

    69652

  • Collection

    General Map Collection

  • Object Dates

    1930 (Creation Date)

  • Subjects

    United States

  • Height x Width

    23.5 x 29.7 inches

    59.7 x 75.4 cm

  • Comments

    Chart of Magnetic Deviation from True North.
    C. and G. S. print number A - 122.