Cunimund (and possibly Thurisind) supposedly minted silver coins (half-siliqua, quarter-siliqua) in the style of Roman currency in Sirmium. The Ostrogoths first restarted the Roman mint in Sirmium when they occupied the city between about 505 and 535. Coins from the period of Ostrogothic occupation commonly bear the names of the then-ruling Roman emperor on the obverse, and the monogram of Theoderic, the Ostrogothic king, on the reverse. They definitely struck coins in the name of Anastasius (491-518) and Justin I (518-527), and it is possible they minted coins during the first years of Justinian’s rule beginning in 527.

It appears minting operations ceased for a time during the transition from Ostrogothic to Gepidic control of the city, about 527-535. The exact date of the Gepid takeover is not definitively known, but the earliest possible date for resumption of minting activity would be around 536. Either Thurisind or Cunimund may have struck coins in the name of Justinian, and Cunimund may have struck coins in the name of Justin II (565-576) for a brief time before the destruction of the Gepid state in 567.