Sorting of the digitized material by participating collections, seen here (clockwise starting top left): Freiburg, Tübingen (Classical Archaeology Collection), Braunschweig, Bochum, Münster, Kiel, Mainz, and again Tübingen (Collection of the Research Center for Islamic Numismatics Tübingen). Picture credits: Johannes Wienand/TU Braunschweig
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