1. Free Library of Philadelphia, Lewis E M 27:8 DS ID: DS5140 Title: Choir book Place: TuscanySienaItaly Date: 1300-1350
2. Free Library of Philadelphia, Lewis E M 46:14 DS ID: DS5412 Title: Antiphonary Place: Tuscany and Italy Date: 1350-1375
3. Free Library of Philadelphia, Lewis E M 74:2-3 DS ID: DS5695 Title: Antiphonary Place: Tuscany and Italy Date: 1325-1350