521. University of Pennsylvania, LJS 342 Title: Copies of documents relating to water rights in Milan. Author: Duchy of Milan Place: Milan Date: [after 1444]
522. University of Pennsylvania, LJS 345 Title: Inventions or devises. Author: William Bourne Place: Gravesend Date: [circa 1576]
523. University of Pennsylvania, Oversize LJS 346 Title: Edicts concerning Jews in Mantua. Author: Vincenzo Gonzaga Place: Mantua Date: 1594.
524. University of Pennsylvania, LJS 347 Title: De consolatione philosophiae Author: Boethius Place: England Date: [between 1300 and 1350?]
525. University of Pennsylvania, Oversize LJS 356 Title: Pattern-books Place: Germany Date: [between 1550 and 1599]
526. University of Pennsylvania, LJS 358 Title: Letter to Rodolfo Pio da Carpi, Author: Rodolfo Pio da Carpi Date: circa 1560.
527. University of Pennsylvania, Oversize LJS 359 Title: Canon of Medicine Author: Avicenna Place: England Date: [between 1250 and 1299]
528. University of Pennsylvania, LJS 35 Title: Decretals of Gregory IX Author: Catholic Church Date: between 1240 and 1260.
530. University of Pennsylvania, Oversize LJS 36 Title: Manuscript leaf from an account of the Jewish Wars, Date: 1100s.