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A Chart of Magnetic Curves of Equal Variation
Out of stock
This hand colored map was made by Adam and Charles Black in 1851 for “Black’s General Atlas”. The magnetic curves of the Earth are illustrated on this map. The impression of the press used to engrave the map is still evident.
Size: 15.75 x 9.5 inches
Condition: Very Good-age toning
Map Maker: Adam and Charles Black
Coloring: Black and White
Year: 1851
Condition: Very Good-age toning
Map Maker: Adam and Charles Black
Coloring: Black and White
Year: 1851
Out of stock
