Catalog Archive
Auction 102, Lot 636
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"[Lot of 3 Horololgical diagrams]", Ritter, Franz

1 of 3

Subject: Cartographic Miscellany

Period: 1610 (dated)

Publication: Speculum Solis…

Color: Hand Color

Size:
13.2 x 11.3 inches
33.5 x 28.7 cm
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Franz Ritter was a German mathematician and astronomer whose works are extremely rare. These beautiful engravings are horological diagram remarkable for the elaborately engraved decorative border. At top is a large cartouche and at bottom is a 32-point wind rose. Each showing a different mathematical calculation.

References:

Condition:

Estimate: $2,000 - $3,000

Sold for: $1,950

Closed on 3/5/2003

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