Portugues early Astrolabe

Antique, but near-faithful (but a bit smaller ) copy of the ‘Isa ibn Allahdad’ astrolabe of Lahore. Pakistan

Götheborg Sweden

by George Adams senior

English bowxwood Gunter Quadrant or Horary Quadrant to measure the altitude of the polestar or the sun, to determine your latitude at sea or time on land.

Quadrant on stand. 21 cm heigh

herzogl. Hofmechanikus und Hofuhrmacher in Stuttgart.

Inscription: 1582 after Mohamed Probably about 1900

Replica of the one found at the island Valencia near Ireland Copy of the one in Greenwich

Arabische KAMAL, Teak replica with knots for the latitude of Abu Dhabi 24°28’, Dubai 25°16’, Manama 26°12’ and Koeweit 29°23’

facsimile of one of the oldest quadrants of the world, estimated to be from 1300. Most probably made in Flanders