This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Opening of text. Three problems all solved with both white and black pieces shown NYPL b.tif en Listed in De Ricci Seymour Census of Medieval and Renaissance Manuscripts in the United States and Canada New York Wilson and Supplement New York Bibliographical Society of America Ownership Bequeathed by Gustavus Pfeiffer De Ricci Supplement