1. The Huntington Library, Art Museum, and Botanical Gardens, mssHM 1037 DS ID: DS9919 Title: De ludo scachorum Author: Jacobus de Cessolis Place: Italy Date: between 1450 and 1499
2. Newberry Library, VAULT Case MS 55.5 DS ID: DS17930 Title: De ludo scachorum Author: Jacobus de Cessolis Place: Flanders Date: between 1450 and 1478