Caracalla (198-217 A.D.) - Silver Denarius - 20.51mm, 2.48g
Obverse - ANTONINVS PIVS AVG
Caracalla, his laureate head right
Reverse - PONTIF TR P X COS II
Caracalla as Virtus, in military dress, standing half-right,
foot on helmet, holding reversed spear and parazonium.

Minted in Rome in 207 A.D. (TR P 10, COS 2) during his reign as Co-Augustus with his father Septimius Severus

Reference:
Mattingly, H & Sydenham, E.A., "Roman Imperial Coinage", Volume 4, Part 1 (RIC), p227, nr. 95.
Mattingly, Carson & Hill, "Coins of the Roman Empire in the British Museum", Vol.5 (BMCRE), p266, nr. 522 var (↓ die axis)
Sear, D.R., "Roman Coins and their Values" (RCV Millennium Edition), Vol. 2, p525, nr. 6864.
Cohen, H, "Descriptions Historique des Monnaies frappees sous l'Empire Romain" (C), Volume 4, p189, nr. 440.
Seaby, H.A. & Sear, D.R., "Roman Silver Coins" (RSC), Volume 3, p79,  nr. 440.
Hill, P.V., "The Coinage of Septimius Severus and his family of the Mint of Rome" (CSS), p25, nr. 918.
Suarez, R., "Encyclopedia of Roman Imperial Coins II" (ERIC II),  p195, nr.89, (B05, O18, R118, T215, M2)
Suarez, R., "Encyclopedia of Roman Imperial Coins II" (ERIC II-digital),  p195, nr.89, (B05, O18, R118, T215, M2)
Van Meter, D., "Handbook of Roman Imperial Coins" (VM), p197, nr. 72/4.
Kampmann, U., "Die Münzen der Römischen Kaiserzeit", 2nd. revised edition (Kampmann), p218?, nr. 50.198.

Quality: Very Fine
Rarity: C (common)