2912. Free Library of Philadelphia, Lewis E M 73:7-9 Title: Antiphonary Place: Bologna Date: 1300-1399
2917. Free Library of Philadelphia, Lewis E M 74:2-3 Title: Antiphonary Place: Tuscany Date: 1325-1350
2918. Free Library of Philadelphia, Lewis E M 74:4-7 Title: Antiphonary Place: Tuscany Date: 1250-1299