1. The Huntington Library, Art Museum, and Botanical Gardens, mssHM 31052 DS ID: DS9692 Title: Gradual Author: Catholic Church Place: Bohemia Date: between 1390 and 1410
2. Newberry Library, VAULT oversize Case MS 74 [v.1]-[v.2] DS ID: DS17860 Title: Gradual Author: Catholic Church Place: Florence and Italy Date: between 1390 and 1395