1. University of Pennsylvania, Ms. Codex 102 DS ID: DS870 Title: Account book Author: Alamanno de' Medici Place: Florence Date: 1468-1488.
2. University of Pennsylvania, Ms. Codex 1209 DS ID: DS964 Title: Account book Place: Toulouse and France Date: 1492-1494.
3. University of California, Berkeley, BANC MS UCB 78 DS ID: DS12646 Title: Account book Date: 1480-1486].