21. Cornell University, Archives 6532.mc.04 6532 mapcase folder 4 DS ID: DS12287 Title: Gradual Place: Spain Date: between circa 1400 and 1499.
22. University of California, Berkeley, BANC MS UCB 158 DS ID: DS12379 Title: Gradual Author: Catholic Church Place: Spain Date: 15--
23. Newberry Library, artifacts cage oversize Case MS 5088 DS ID: DS17689 Title: Gradual Author: Catholic Church Place: Spain Date: between 1500 and 1599
24. Newberry Library, artifacts cage oversize Case MS 5387 DS ID: DS17828 Title: Gradual Author: Catholic Church Place: Spain Date: between 1500 and 1599