41. University of Pennsylvania, Ms. Codex 1538 DS ID: DS1402 Title: Notebook Place: Italy Date: 1561-1565.
42. University of Pennsylvania, Ms. Codex 1539 DS ID: DS1403 Title: Ledger Place: Italy Date: 1563-1569.
43. University of Pennsylvania, Halper 420 DS ID: DS25906 Title: Letter Author: Masina, Meir, 17th century Date: late 17th century