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Gores of Ibrâhîm ibn Saîd al-Sahlî al-Wazzân’s celestial globe

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Gore s of Ibrâhîm ibn Saîd al-Sahlî al-Wazzân's celestial globe
Florence, Istituto e Museo di Storia della Scienza, Misc. Fisica B43/27

12 gores that make up the oldest Islamic celestial globe.