Isodynamic

Continue to eBay London United Kingdom £5.99 GBP Isodynamic Lines World SMALL sketch map 1886 old antique plan chart

Continue to eBay London United Kingdom £19.99 GBP Isogonous Isoclinic Isodynamic Lines World 1886 old antique map plan

Continue to eBay London United Kingdom £43.99 GBP Terrestrial Magnetism Declination Inclination isodynamic in 1840 1787 1856

Continue to eBay Plymouth United Kingdom £14.5 GBP METEOROLOGY Inclination and Isodynamic Charts Antique 1851 Print D296

Continue to eBay York United Kingdom £48.0 GBP c1890 ANTIQUE MAP THE WORLD ISOGONOUS ISOCLINIC ISODYNAMIC LINES OCEANIA