1. University of Pennsylvania, Ms. Codex 1508 Bookmark DS ID: DS1383 Title: Ledger Author: Alamanno de' Medici Place: Florence Date: 1475-1483.
2. University of Pennsylvania, Oversize Ms. Codex 1516 Bookmark DS ID: DS1387 Title: Ledger Author: Bernardo Antonio de' Medici Place: Florence Date: 1456-1457.