Miniature Astrolabe Key Ring

Miniature of classic European astrolabe. Set for 41º lat. Scale significantly reduced (very complex instrument in this size could be used to learned its parts and basis of use. A real expert could play more). 

Astrolabes date from the time of Ptolemy and the name in Greek means "Star Searcher."

It is a tool for astronomers, astrologers, and surveyors widely used until the 17th century.

This beautifully crafted instrument of brass with brass key ring

Beautifully boxed with booklet of instruction and historical  context

Diameter: 1.77"

Thickness: 0.20"