1. Boston Public Library, MS pb Med.180 Title: Single leaf from a 15th-century gradual : in Latin]. Author: Catholic Church Place: Italy Date: between 1450 and 1499
2. Boston Public Library, MS pb Med.186 Title: Single leaf from a 15th-century gradual : in Latin]. Author: Catholic Church Place: Belgium Date: between 1450 and 1499
3. Boston Public Library, MS pb Med.190 Title: Single leaf from a 15th-century gradual : in Latin]. Author: Catholic Church Place: Italy Date: between 1400 and 1450
4. Boston Public Library, MS pb Med.205 Title: Single leaf from a 15th-century gradual : in Latin]. Author: Catholic Church Place: Vienna Date: ca. 1458-1465
5. Boston Public Library, MS pb Med.206 Title: Single leaf from a 15th-century gradual : in Latin]. Author: Catholic Church Place: Vienna Date: ca. 1458-1465
6. Boston Public Library, MS pb Med.207 Title: Single leaf from a 15th-century gradual : in Latin]. Author: Catholic Church Place: Vienna Date: ca. 1458-1465
7. Boston Public Library, MS pb Med.223 Title: Single leaf from a 15th-century gradual : in Latin]. Author: Catholic Church Place: Italy Date: between 1450 and 1499