Sestertius of Commodus

The sestertius was the largest common bronze denomination of imperial Rome, and this example was struck during the sole reign of Emperor Commodus, roughly 180 to 192 AD. It is a big, heavy coin cast in a golden-brown copper alloy, and the piece shown here carries the bearded, right-facing head of Commodus on the obverse and a standing figure, likely a deity or a military personification, on the reverse.

Sestertii like this served as high-value small change across the Roman world and were also a primary vehicle for imperial propaganda. The abbreviated Latin legends running around both faces name and title the emperor and describe the scene or virtue depicted on the reverse. Worn and patinated after nearly two millennia, coins of this type are widely collected today as tangible relics of the later Antonine and early Commodan period.

Commodus ruled as sole emperor from 180 AD, following the death of his father Marcus Aurelius, until his assassination at the end of 192 AD. His reign is often treated as a turning point that closed the era of the so-called "Five Good Emperors," and his coinage reflects an increasingly self-glorifying imperial image, culminating in later issues that associated him with Hercules.

The sestertius had been the workhorse large bronze of Rome since the Augustan reform, struck in an orichalcum (a brass-like copper-zinc alloy) that originally gave it a bright golden tone. Throughout Commodus's reign the mint at Rome produced sestertii bearing evolving portraits and a rotating series of reverse types honoring gods, victories, imperial virtues, and public benefactions, dated internally by the emperor's tribunician and consular titles rather than by a calendar year.

Because his titulature changed almost yearly, specialists can often place a given Commodus sestertius within a narrow window inside the 180–192 span by reading its reverse legend. After his death and official condemnation, many of his coins remained in circulation for decades, which is one reason they survive in quantity.

The first clue is size and heft: a sestertius is a large, thick bronze coin, substantially bigger and heavier than the smaller dupondii, asses, and silver denarii of the same era. The metal is a copper alloy (orichalcum or bronze) that today usually shows a brown, green, or reddish patina rather than its original golden luster.

The obverse shows the head of Commodus facing right, mature and bearded in the Antonine style, typically laureate. It is encircled by an abbreviated Latin legend giving his name and titles, commonly opening with M COMMODVS or L AELIVS AVRELIVS COMMODVS along with imperial titles such as ANTONINVS AVG. The reverse depicts a standing figure and its own legend; on this coin the upright figure could be a deity or a personified virtue, and the letters S C (Senatus Consulto) generally appear in the field, marking it as a senatorial bronze issue.

Use the details of the standing reverse figure, any objects it holds, and the surrounding legend to identify the specific type and to narrow the date within the reign. The exact reading of the legend, rather than the portrait alone, is what pins down the issue.

Values for a Commodus sestertius vary enormously with condition, since these are ancient hand-struck coins that have survived roughly 1,800 years. Heavily worn, corroded, or roughly patinated examples with weak legends are the most affordable and often trade in the modest tens of dollars up to low hundreds, while a clear portrait and a legible reverse push a coin higher.

Well-centered pieces with a sharp portrait, a fully readable legend, and an attractive even patina can reach several hundred to well into the thousands of dollars, and exceptional rare reverse types or superb-quality examples command considerably more at specialist auctions. As a broad guide only, most collectable middle-grade sestertii of Commodus fall somewhere in the low hundreds of dollars.

Because the field carries both genuine ancient rarities and modern forgeries, and because provenance and eye appeal heavily influence price, any significant purchase should rely on a specialist's assessment rather than a fixed catalog figure.