Philadelphia Museum of Art. Division of Education & Harbeson, J. F. (1964). Nine centuries of chessmen: The collection of John F. Harbeson. April 17-May 17, 1964.

Philadelphia Museum of Art. Division of Education and John F. Harbeson. Nine Centuries of Chessmen: The Collection of John F. Harbeson. April 17-May 17, 1964. [Philadelphia?], 1964.

Philadelphia Museum of Art. Division of Education and John F. Harbeson. Nine Centuries of Chessmen: The Collection of John F. Harbeson. April 17-May 17, 1964. 1964.