Isogonic or lines of equal magnetic declination, vintage engraved illustration. From the Universe and Humanity, 1910.

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Size: 4572px × 2344px
Photo credit: © Panther Media / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: ancient, antique, art, artwork, cartography, color, colored, declination, deviation, direction, drawing, engraved, engraving, equal, etching, flow, geography, graph, hand, historic, history, illustration, isogonic, line, magnetic, map, picture, territory, topography, variation, vintage