With Octavian's victory in the naval the Battle of Actium in 32 BC that led to the defeat of Marc Anthony and Cleopatra, he became the sole ruler of the Roman world, and later became its first emperor, known as Augustus Caesar.
On one side of the coin, the bare head of Octavian is facing right, and on the other, an arch surmounted with Octavian and a triumphal quadriga.
The arch depicted would be the Arcus Octaviani, made to commemorated Octavian's military successes. To this day, as there has been no confirmed findings to the locations of its ruins, the only surviving information about this monument would be from various literary sources, and of the depiction found on the coin above.
With Ancient coins, their values are harder to assess due to the unknown number of coins minted, their varying appearances, preservation state, and desirability, but approximate values run like this:
worn: $100 US dollars approximate catalog value
average circulated: $400
well preserved: $1000
To provide a better idea of how value varies with condition, consider the 3 coins to the right. The top coin, obviously in the best condition, is a $1000 coin. It comes from Roma Numismatics and we thank them for use of their coin image. The second and third coins are less valuable, about $200 for the second coin and about $50 for the third.