1. Free Library of Philadelphia, Lewis E 49 DS ID: DS4413 Title: Breviary Place: Cologne and Flanders
2. Cornell University, Archives 6532.03.12bis DS ID: DS12229 Title: Breviary Place: Flanders Date: circa 1350.
3. Rochester Institute of Technology, PORTFOLIO BOX 1-18 DS ID: DS16482 Title: Breviary Place: Flanders and Ghent Date: ca. 1275-1300