Single Plate Universal Astrolabe, European, 15th Century with Later Additions
|Inventory Number:|| 14645|
|Object Type:|| |
|Brief Description:||Single plate with simple three-lobed throne and suspension ring. One side carries a universal projection on the plane of the solsticial colures with a graduated index rule, a brachiolus and an ecliptic rule attached to an adapted ecliptic arc. The other side carries a zodiac calendar, a shadow square, a latitude plate with houses and unequal hours and a fixed ecliptic circle, with a counterchanged alidade carrying two brachioli. The numerals and letters are in a mixture of Gothic and italic script.|
|Provenance:||Presented by an anonymous donor.
Previously sold as lot 189 at Bonhams Knightsbridge, 4 November 2014 (https://www.bonhams.com/auctions/21933/lot/189/).|