1. Free Library of Philadelphia, Lewis E 159 DS ID: DS4508 Title: Missal Place: Germany Date: 1200-1215
2. Free Library of Philadelphia, Lewis E M 44:11 DS ID: DS5366 Title: Missal Place: Germany Date: 1250-1299
3. Newberry Library, VAULT folio Case MS 15 DS ID: DS18139 Title: Missal Author: Catholic Church Place: Germany Date: approximately 1250