1. Newberry Library, VAULT slipcase Ayer MS map 2 DS ID: DS17910 Title: Portolan atlas Author: Giacomo Giroldi Date: approximately 1440
2. Newberry Library, VAULT oversize Ayer MS map 8 DS ID: DS17912 Title: Portolan atlas Author: Conte di Ottomano Freducci Date: Mcccccxxxiii [1533