This tetradrachm – piece of a 4-drachms – was issued in Argilos, a small island of the Cyclades. It depicts Pegasus, the winged horse of Greek mythology. The reverse bears the crude impressions of the obverse die, the so-called 'quadratum incusum.'
Moreover, our coin bears a prominent proof mark. In the late 6th century coins were still something new. Consumers still mistrusted the new means of payment. The material's value was of foremost importance. And who knew whether such a coin was not only a thin silver layer hiding a worthless core?