Good Companion (Bonus Socius): XIIIth century manuscript collection of chess problems illustrated with coloured frontispiece, and thirty-eight full page reproductions from original manuscript. To which is added a short narrative of Jacobus Cessolis and the two French Champions Philidor and La Bourdonnais. Edited by James F. Magee Jr., Firenze, Giuntina, 1910, 68 p. [GB][IA]