Coins from Seleucia on the Tigris features 30,000 coins excavated at Seleucia-on-the-Tigris in the 1927–32 excavations under the auspices of the University of Michigan, the Toledo Museum of Art, and the Cleveland Museum of Art. Half of the included coins came from definite provinces; photographs were taken by Michigan’s George Swain, after treatment of many coins by the American Numismatic Society’s ET Newell.