Hadrian Semis, RIC II, Part 3 (second edition) Hadrian 976

Monetary Context and Denominational Role

Under the Principate, Roman bronze and brass coinages operated as token fractional currency anchored to the precious-metal denominations. The imperial denomination framework, established under Augustus and maintained through the early second century AD, structured the subsidiary base-metal system into the sestertius, dupondius, as, semis, and quadrans. The semis functioned as half of an as, four semisses making a dupondius and eight making a sestertius. In relation to precious metals, thirty-two semisses equaled one silver denarius. While the sestertius and dupondius were struck in orichalcum (a brass alloy composed of copper and zinc) and the as was typically struck in pure copper, small fractional denominations experienced periodic shifts in metal composition. During Hadrian's reign, the mint of Rome struck fractional coins, including semisses and quadrantes, utilizing orichalcum as well as copper. The use of orichalcum for the semis provided a bright, golden appearance upon release from the dies, visually distinguishing it from copper pieces of similar scale. Fractional base-metal issues were critical for maintaining price liquidity in municipal markets, taverns, and retail commerce, where daily subsistence purchases required smaller values than the denarius or sestertius. However, the production volume of semisses under Hadrian was substantially smaller than that of sestertii, middle bronzes, and denarii. Fractional base metals were struck intermittently rather than continuously, serving to top up the circulating pool of low-value tokens when local shortages arose in the capital.

Production Technology and Mint Attribution

The entire attested issue of RIC II, Part 3 (second edition) Hadrian 976 was produced at the imperial mint of Rome. In this period, Rome served as the primary centralized production center for imperial base-metal issues across the western empire. The mint operated under the direction of equestrian procurators and employed organized collegia of engravers, flan casters, and strikers. Flans for orichalcum fractions were cast in open or two-part molds and subsequently prepared for striking. The alloy of imperial orichalcum contained copper with an intentional zinc component, often ranging between ten and twenty percent zinc in earlier Julio-Claudian and Flavian issues, though zinc percentages gradually declined through the second century AD. Strikers aligned the heated or cold cast blanks between hand-engraved iron dies. Die axes on Hadrianic bronze issues from Rome typically conform to a regular six o'clock (down) or twelve o'clock (up) orientation, reflecting consistent workshop practices. Because the semis was a small denomination, striking required refined miniature die engraving. The dies for RIC 976 exhibit the classic high-relief stylistic execution characteristic of the mid-Hadrianic urban mint, with clear lettering and carefully proportioned figures that fit precisely within the restricted flan area.

Obverse Iconography and Imperial Portraiture

The obverse of RIC II, Part 3 (second edition) Hadrian 976 features a laureate head of Hadrian facing to the right. The portrait presents the emperor with his signature curled hair and full beard, a stylistic departure from the clean-shaven portraits of earlier Julio-Claudian and Flavian emperors that Hadrian popularized across the empire, drawing upon Greek philosophical and military traditions. The laurel wreath encircling the imperial head serves as the traditional symbol of triumph, civil authority, and divine favor. The execution of the portrait on this fractional die reflects the mature stylistic phase of Hadrianic portraiture, displaying dignified, calm facial features without excessive dramatization. The laurel ties fall naturally behind the nape of the neck, and the truncation of the neck is neatly balanced across the lower field to accommodate the surrounding inscription.

Reverse Iconography: Military Standards and the Eagle

The reverse design displays an eagle standing with spread wings, flanked on either side by a military standard (signum). The eagle was sacred to Jupiter Optimus Maximus and served as the paramount emblem of Roman military power and imperial legitimacy. Positioned centrally, the eagle looks either to the left or right with wings expanded, conveying protection, authority, and vigilance. The flanking standards represent the maniples or cohorts of the Roman army. Each standard consists of a pole decorated with discs (phalerae) and crowned with customary finials. This martial ensemble unites the supreme symbol of the legionary aquila with the tactical signa of the field units. Placing military standards on a small civic fractional coin reinforced imperial cohesion and the shared loyalty between the princeps, the legions, and the Roman state. In the lower field or across the lateral fields, the senatorial formula S C appears, denoting Senatus Consulto ('by decree of the Senate'). This formula remained a constitutional hallmark of Roman imperial base-metal coinages, preserving the traditional republican fiction of senatorial oversight over copper and brass issues struck in Rome.

Inscriptions and Epigraphic Analysis

The obverse legend reads HADRIANVS AVGVSTVS P P, executed continuously along the rim. This formula begins at the lower left and encircles the portrait. The inclusion of P P represents the title Pater Patriae ('Father of his Country'). Hadrian historically declined this title for much of his early reign, formally accepting it in early 128 AD. Consequently, the presence of P P in the obverse legend serves as a firm terminus post quem for the strike. The reverse inscription is divided between the imperial titulature and the authorization mark. The upper and lateral field inscription reads COS III, designating Hadrian's third consulship. Hadrian entered his third consulship on January 1, 119 AD, and did not assume a fourth consulship for the remainder of his life. As a result, COS III remained a static titular element on his coinage for nearly two decades. The letters S and C appear split across the lower reverse field on either side of the standards or in the central exergue, signifying Senatus Consulto. The letterforms are characterized by neat, serifed Roman capitals, proportioned to fit the limited vertical space alongside the upright standards.

Typology and Chronological Classification

In the original 1926 second volume of The Roman Imperial Coinage, Hadrianic coinage was organized according to broad reverse themes and consular dates. The updated second edition, RIC II, Part 3 (published by Richard Abdy and Peter Franz Mittag in 2019), revised the internal sequence and typology of the reign based on portrait styles, imperial titles, and hoard evidence. Under this modern classification, type 976 is securely assigned to the period 128 to 129 AD. The starting boundary of 128 AD is fixed by Hadrian's formal adoption of the title Pater Patriae. The closing boundary of 129 AD aligns with the introduction of new stylistic groupings and thematic issues tied to Hadrian's second major imperial tour of the provinces. RIC II, Part 3 Hadrian 976 forms part of a cohesive series of small-denomination issues struck in Rome that combined the updated obverse title with classic military and religious reverse motifs, distinct from earlier pre-128 issues lacking P P.

Circulation Patterns and Archaeological Context

Imperial brass semisses struck at Rome circulated predominantly within central Italy and urban centers that relied on small-change transactions. Unlike silver denarii and gold aurei, which circulated uniformly across the entire empire, fractional base-metal issues had lower velocity and tended to remain closer to their zone of primary distribution. Because of their small physical module and base-metal content, semisses were rarely hoarded in large monetary deposits, which typically privileged silver coins or high-denomination sestertii. Instead, specimens are most frequently recovered as single site finds in excavation contexts such as tabernae, fora, baths, and military camps. In the western provinces, small brass fractions were sometimes supplemented by local countermarked issues or halved older asses when civic supplies of semisses proved inadequate. By the mid-second century AD, inflation and economic shifts diminished the practical utility of the semis, leading to a steady decrease in its minting volume until the denomination virtually vanished from western circulation during the Severan period.

References

1. The Roman Imperial Coinage, Volume II, Part 3: From Hadrian to Antoninus Pius (AD 117-138) - Hadrian. Type 976
2. Coins of the Roman Empire in the British Museum (BMCRE), Volume III: Nerva to Hadrian. Hadrian Base-Metal Issues
3. Online Coins of the Roman Empire: RIC II, Part 3 (second edition) Hadrian 976. ric.2_3(2).hdn.976
4. Untersuchungen zur romischen Reichspragung des zweiten Jahrhunderts, Teil II: Die Reichspragung zur Zeit des Hadrian. Hadrianic Bronzes