The star names are given with their magnitudes and their corresponding planetary temperaments, the plates have both the Horizon rectus and the Horizon obliquus, the mater bears the markings for a quadratum nauticum and the back shows the universal projection as described by Gemma Frisius in his treatise on the 'astrolabum catholicum'.

British Museum, London
Registration no. MLA 1893,6-16.1

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