An interesting sheet that contains an armillary sphere, plan of the solar system, 32-point compass rose, plans explaining eclipses, the seasons and of the moons phases. Plus a thematic plan of the highest mountains with table, a similar plan of the longest rivers, and a 'legend' map shows various cartographic symbols used in mapmaking. A very handsome and well-engraved sheet.
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Condition: A
Crisp, dark impression. A little offsetting, still very good.