1. University of Pennsylvania, Ms. Codex 1461 DS ID: DS1364 Title: Ledger Place: Florence Date: 1577-1583.
2. University of Pennsylvania, Ms. Codex 1482 DS ID: DS1370 Title: Ledger Place: Florence Date: 1581-1600.
3. University of Pennsylvania, Ms. Codex 1524 DS ID: DS1394 Title: Ledger Place: Florence Date: 1581-1583.