1. University of Pennsylvania, LJS 61 Title: Writs Author: Richard II of England Place: London Date: 1407-1427
2. The Huntington Library, Art Museum, and Botanical Gardens, mssHM 81170 Title: Register brevium Author: Richard Nykke Place: London Date: approximately 1460, and later additions in early 16th c.
3. The Huntington Library, Art Museum, and Botanical Gardens, mssEL 35 B 54 Title: Writ Place: England Date: between 1300 and 1325
4. The Huntington Library, Art Museum, and Botanical Gardens, mssHM 15242 Title: Register of writs Place: England Date: between 1450 and 1499
5. The Huntington Library, Art Museum, and Botanical Gardens, mssHM 45147 Title: Writ Place: England Date: between 1450 and 1499
6. The Huntington Library, Art Museum, and Botanical Gardens, mssHM 47619 Title: Miscellany Place: England Date: between 1440 and 1460