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Scans of Old Maps tagged with 'Magnetic variation'

Lines of Equal Magnetic Variation or Declination (1888)
Our Earth and its Story - Vol 3 Published: 1889

Language: en
Publisher: Cassell
Tags: (magnetic variation,
world, magnetosphere)
600 DPI
Ghana - Isogonic (1965)
Portfolio of Ghana Maps Published: 1965

Language: en
Publisher: Survey of Ghana
Tags: (ghana,
magnetic variation, isogonic)
1200 DPI

Found 2 Maps