1. The Huntington Library, Art Museum, and Botanical Gardens, mssEL 26 C 9 DS ID: DS9601 Title: Canterbury Tales Author: Geoffrey Chaucer Place: England Date: between 1400 and 1410.
2. Harvard University, MS Eng 920 DS ID: DS11034 Title: Treatise on astrolabes Author: Geoffrey Chaucer Date: ca. 1400