1. Harry Ransom Center, MS 3327, Container 13 DS ID: DS3886 Title: Gradual Place: Italy Date: between 14th and 16th centuries
2. Harry Ransom Center, MS 3327, Container 144 DS ID: DS3941 Title: Gradual Place: Spain and Toledo Date: mid-16th century
3. Free Library of Philadelphia, Lewis T437 DS ID: DS6148 Title: Gradual and Missal Place: England Date: 1300-1500