1. Princeton University, Kane MS. 50. Title: De institutione arithmetica Place: England Date: between 1200 and 1400
3. Free Library of Philadelphia, Lewis E M 16:33 Title: Historiated initial Place: England Date: 1275-1350
5. Free Library of Philadelphia, Lewis E M 43:2a Title: Historiated initial Place: England Date: 1200-1299
6. Free Library of Philadelphia, Lewis E M 43:2b Title: Historiated initial Place: England Date: 1200-1299
7. Free Library of Philadelphia, Lewis E M 43:2c Title: Historiated initial Place: England Date: 1200-1299