1. University of Pennsylvania, Ms. Codex 1482 DS ID: DS1370 Title: Ledger Place: Florence Date: 1581-1600.
2. Newberry Library, VAULT oversize Ayer MS 743 DS ID: DS17842 Title: Geographia Author: Ptolemy and Nicephorus Gregoras Place: Florence and Italy Date: between 1400 and 1435