Kolbas, Judith Grace, Mongol Money: The Role of Tabriz from Chingiz Khan to Uljaytu, 616-709 AH / 1220-1309 AD, Ph.D. Dissertation, New York University, 1992, 632 pages, softcover. A lengthy (more than 600 pages) doctoral dissertation on the theory, structure and techniques of monetary policy in the southwestern portion of the Mongol empire from Chingiz Khan to the mid reign of Uljaytu (Ilkhan). The thesis also explores social and political structure, administrative languages and cultural symbols. Most of the direct work on coins in metrological, not descriptive, although there are descriptions and photos of several coin types as an appendix, ex James Farr Collection Library.
Estimate: 20-40 USD