2301. Free Library of Philadelphia, Lewis E M 21:1 Title: Book of hours Place: Florence Date: 1400-1499
2303. Free Library of Philadelphia, Lewis E M 21:4-28 Title: Choir book Place: Lombardy Date: 1500-1599
2310. Free Library of Philadelphia, Lewis E M 22:18-21 Title: Choir book Place: Siena Date: 1450-1475