1. University of Chicago, Incun 1489.F73 DS ID: DS20060 Title: Antiphonary Place: Western Europe Date: 16th century
2. University of Chicago, Incun 1497.B739 DS ID: DS20063 Title: Gradual Place: Western Europe Date: 16th or 17th century
3. University of Chicago, Incun 1497.P4 DS ID: DS20065 Title: Gradual Place: Western Europe Date: 16th century