Septimius Severus ruled the Roman Empire from 193 to 211 AD and this silver denarius is a rare and valuable piece from that period. The coin features the emperor's portrait and various symbols of power and authority. It is made of high-quality silver with a fineness of 0.9 and has been graded XF 45. Though the coin is not certified, it has been cleaned and is in excellent condition for its age. This piece would make a great addition to any collection of ancient coins.