Caius [Caligula] (37-41 A.D.) - Copper As - 28mm, 10.38g
Obverse - C CAESAR AVG GERMANICVS PON M TR POT
Caius, his bare head left.
 Reverse - VESTA SC
Vesta, veiled and draped, seated left on ornamental throne,
holding patera in right and long transverse sceptre in left hand.
Image
Minted in Rome 37-38 A.D.

Reference:
Sutherland, C.H.V., "Roman Imperial Coinage", Volume 1, revised edition (RIC), p111, nr.38.
Sear, D.R., "Roman Coins and their Values" (RCV Millennium Edition), Volume 1, p356, nr.1803.
Sear, D.R., "Roman Coins and their Values" (RCV 4th Revised Edition), p110, nr.616.
Cohen, H., "Descriptions Historique des Monnaies frappees sous l'Empire Romain" (C), Volume 1, p240, nr.27.
Mattingly, H., "Coins of the Roman Empire in the British Museum", Volume 1 (BMCRE), p154, nr. 46-48.
Van Meter, D., "Handbook of Roman Imperial Coins" (VM), p80, nr. 9.
Suarez, R., "Encyclopedia of Roman Imperial Coins II" (ERIC II),  p34, nr.50 (B1, O5, R20, T12, M3)
Suarez, R., "Encyclopedia of Roman Imperial Coins II" (ERIC II-eBook),  p32, nr.50 (B1, O5, R20, T12, M3)
Kampmann, U., "Die Münzen der Römischen Kaiserzeit", 2e Auflage (Kampmann), p58, nr.11.9.

Quality: Very Fine+
Rarity: S (Scarce)