1. Boston Public Library, MS q Med.162 DS ID: DS3481 Title: Prayer book Author: Catholic Church Place: Utrecht Date: ca. 1450
2. Boston Public Library, MS q Med.256 DS ID: DS3511 Title: Prayer book Place: Germany Date: ca. 1450].
3. Western Michigan University, WMU MS 106 DS ID: DS6392 Title: Prayer book Date: between 1290 and 1310