At the Fondation Martin Bodmer in Cologny, Switzerland, is a little known annotated copy of Chaucer's Canterbury Tales, the first illustrated edition published by Caxton around 1483.1 This copy, Inc. B. 70, bears the physical marks of a long history of use, and this essay accounts for what is known of the book's provenance between its origins in Westminster and its arrival in Switzerland in the early 1940s.The article reads the book's marginalia, damages, repairs, signatures,and binding as the signs of the individuals and institutions that read, revered, rejected, and coveted it across centuries.