Grabar, Oleg, The Coinage of the Tulunids, American Numismatic Society, Numismatic Notes and Monographs No. 139, New York, 1957, 78 pages, 3 plates, softcover. The standard reference on the Islamic Tulunid dynasty (868-905). Almost 100 coins described, with Arabic legends written out, and 25 photographed. Extensive history of the dynasty.
Estimate: 100-125 USD