After Julius Caesar's death in 44 BC, a struggle for power over the empire broke out. Constantly changing coalitions characterized the political climate. Because the rival army commanders could not expect to be provided with the necessary funds by Rome, coins were minted more and more frequently also outside the city.
This denarius is such a provincial issue. The special feature is not the coin itself, but the fact that the die used for minting the coin still exists today and is in the possession of the MoneyMuseum. This is extraordinarily rare, because dies were always immediately destroyed in Republican Rome.