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O: Trajan wearing radiate crown
IMP CAES NERVAE TRAIANO AVG GER DAC P M TR P COS V P P
R: Tropaion
SPQR OPTIMO PRINCIPI / S C
Orichalcum dupondius struck in Rome 104
ref.: RIC 586
O: Draped bust of Faustina the Younger
FAVSTINAE AVG PII AVG FIL
R: Sitting Pudicitia
PVDICITIA; S C (below)
Orichalcum dupondius struck in Rome c. 147–150
ref.: RIC 1404(b)
O: Didius Julianus wearing radiate crown
IMP CAES M DID IVLIANVS AVG
R: Fortuna holding cornucopia and gubernaculum (rudder) on globe
P M TR P COS / S C
Very rare dupondius struck in Rome 193
ref.: RIC 12.
The dupondius (Latin two-pounder) was a brass coin used during the Roman Republic and Roman Empire valued at 2 asses (4/5 of a sestertius or 1/5 of a denarius during the Republic and 1/2 of a sestertius or 1/8 of a denarius during the time of Augustus).
The dupondius was introduced during the Roman Republic as a large bronze cast coin, although even at introduction it weighed less than 2 Roman pounds (librae). The initial coins featured the bust of Roma on the obverse and a six-spoked wheel on the reverse. A loaf of bread or a sextarius (c. 0.5 L) of wine cost roughly one dupondius at the height of the Roman Empire, though due to the debasement of the denarius over the following century, the dupondius was discarded.
With the coinage reform of Augustus in about 23 BC, the sestertius and dupondius were produced in a type of brass called orichalcum[1] by the Romans and numismatists, while lower denominations were produced out of reddish copper. However, some dupondii were made entirely from copper under Augustus, while under Nero some asses were made from both orichalcum and copper, instead of only copper for asses coined until then. Therefore, the latter can only be distinguished from dupondii by their smaller size instead of by also the appearance of the metal.[2][3]
The dupondius was normally further distinguished from the similarly sized as with the addition of a radiate crown to the bust of the emperor in 66 AD during the reign of Nero. Using a radiate crown to indicate double value was also markedly used on the antoninianus (double denarius) introduced by Caracalla and the double sestertius.[4] Since dupondii minted prior to and during the reign of Nero, and occasionally under later rulers, lack the radiate crown, it is often hard to distinguish between the as and the dupondius due to heavy patina which often obscures the coin's original color[citation needed].
An extremely rare dupondius from the reign of Marcus Aurelius, dated to 154 or 155 and in excellent condition, was discovered in 2007 at the archaeological site in Draper's Gardens, London[citation needed].
^Louvet, Edouard. "Roman Coinage, Chapter III: Augustus Reform". Edouard Louvet. Monedas Romanas. Archived from the original on 24 October 2016. Retrieved 27 July 2015.
roughly one dupondius at the height of the Roman Empire, though due to the debasement of the denarius over the following century, the dupondius was discarded...
denominations like the dupondius and as was steadily reduced. In the 1st century AD, everyday small change was dominated by the dupondius and as, but in the...
(546 ml or about 21⁄4 American cups) of ordinary wine cost roughly one dupondius (1⁄8 of a denarius); after Diocletian's Edict on Maximum Prices was issued...
and zinc, rather than silver, and fixed at a quarter of a denarius. The dupondius, formerly a two-pound bronze coin, was now orichalcum, valued at half...
exclusively to a type of brass alloy used for minting Roman as, sestertius, dupondius, and semis type of coins. It is considered more valuable than copper,...
= 160. 200 H Could also stand for 2 (see also 𐆙, the symbol for the dupondius). From a barring of two I's. 250 E 300 B 400 P, G 500 Q Redundant with...
head resting on hand, possibly a representation of the defeated "Sarmatia") tied to base. Dupondius from reign of Emperor Marcus Aurelius, AD 161–180....
Denarius coin used in Ancient Rome from 211 BC to the 3rd century AD 𐆙 Dupondius coin used during the Roman Empire and Roman Republic 𐆗 Quinarius coin...
reddish pure copper, instead of bronze. The denominations of sestertius and dupondius are introduced as large bronze coins. Ma'nu III Saphul becomes ruler of...