The reverse on this example shows Fortuna.
Fortuna, in Roman mythology, the goddess of chance and good luck. From earliest times, her worship was extensive throughout the Roman Empire. At first, she was regarded as a kind of fertility goddess or bearer of prosperity; gradually, she was invoked exclusively for good luck. As the goddess of chance, she was often consulted about the future at her oracular shrines in Antium and Praeneste (now Anzio and Palestrina). A favorite subject in art, Fortuna is usually depicted holding a rudder in one hand and a cornucopia, or horn of plenty, in the other. The rudder signified that she guided the destiny of the world; the cornucopia, that she was the provider of abundance.