Auction 88, Lot 30

"Volvelle",

Subject: Cartographic Miscellany

Period: 1657 (published)

Publication: Theatro del Mundo ye del tiempo Granada

Color: Black & White

Size:
7 x 10 inches
17.8 x 25.4 cm

Copper engraved volvelle, which was used for finding the position of the moon in the zodiac, given the position of the sun and the age of the moon. There is an engraved circle with 31 divisions, into which a separate piece of paper is attached with a red satin ribbon. This inner piece is marked with twelve months, and rotates around the circle. Still functional after nearly 350 years!

References:

Condition: A+

Estimate: $100 - $130

Sold for: $85

Closed on 10/2/1999

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