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Scans of Old Maps tagged with 'Magnetic variation'

Lines of Equal Magnetic Variation or Declination (1878)
Our Earth and its Story Published: 1899

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

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

Found 2 Maps