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Gothic Astrolabe with Universal Projection and Toothed Rete, c. 1400

Inventory Number: 52869
Object Type: astrolabe, universal, astrolabe
Subject Classification(s): Billmeir Collection By Collection Astronomy By Discipline Astrolabes Astronomical Instruments Mathematical Instruments By Trade Location  
Accession Number: 1957-84/175A
Brief Description: Mater, rete for 23 stars, 2 plates, replacement nut, bolt and washer. The inside of the mater is inscribed with a universal projection: as such, this astrolabe is one of the earliest western-European examples with the Saphaea Arzachelis before its introduction in the west by Gemma Frisius, circa 1540. Also very unusually, the outer band of the rete is cut with teeth around its entire circumference.
Primary Inscriptions: Unsigned and undated
Provenance: Presented by J. A. Billmeir.
Collection Group: Billmeir Collection
Material(s): Brass

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