1. University of Pennsylvania, Ms. Codex 1504 DS ID: DS1381 Title: Account book Place: Italy Date: 1547-1551.
2. University of Pennsylvania, Ms. Codex 1540 DS ID: DS1405 Title: Account book Place: Italy Date: 1539-1540.
3. University of Pennsylvania, Ms. Codex 284 DS ID: DS1484 Title: Account book Author: Gisberto Orlandi Place: Italy Date: 1554-1620.