1. University of Pennsylvania, Oversize LJS 481 DS ID: DS717 Title: Ḥaṭṭ al-niqāb ʻan wujūh aʻmāl al-ḥisāb Author: Aḥmad ibn Ḥusayn Ibn al Qunfudh Place: Morocco Date: between 14--? and 16--?