Astrolabe Catalogue


Front of astrolabe without rete or plates. Click to enlarge
Date early 18th century
Place North Africa
Material Brass
Inventory no. 34314
Acquisition Presented by J. A. Billmeir in 1957


The throne is of the simple type . The throne is attached with a integrated base. A very low and broad throne..


The ring is of the other type . This ring resembles a large fish hook.


Shackle of the eye-bolt type (i.e. any shackle that attactes to the ring via an eye-bolt type feature). A relatively simple pin attached to a piece of bent band metal..


The mater and limb are of two pieces, soldered and riveted construction. This limb has been repaired, perhaps from a break or some other deficiency in the limb. The notch for holding the tympans in place is located at the throne. Scales on the limb:
Type Range & Units Numbered Geometry Location
Degree 0 - 360 Degrees of arc Every 5 degrees Circular, concentric None


The womb is devoid of any markings..
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