1. University of Pennsylvania, LJS 472 DS ID: DS709 Title: Ḥeshbon mahalkhot ha-kokhavim Author: Abraham bar Hiyya Place: Spain Date: [14--]
2. University of Pennsylvania, LJS 498 DS ID: DS732 Title: Tsurat ha-arets Author: Abraham bar Hiyya Place: Graz Date: [1542-1599?]