Walker, John, The Coinage of the Second Saffarid Dynasty in Sistan, The American Numismatic Society, Numismatic Notes and Monographs No. 72, New York, 1936, 46 pages, 5 plates, softcover. The history and coinage of the Saffarids (867-1008). The history includes the first Saffarid dynasty, the catalog only the second, ex James Farr Collection Library.
Estimate: 10-20 USD