Otacilia Severa - Augusta 244-249 A.D. -  AR Antoninianus - 23.21mm, 4.61gr
Wife of Philip I, mother of Philip II
Obverse - M OTACIL SEVERA AVG
Otacilia Severa, her diademed and draped bust right on a crescent.
Reverse - CONCORDIA AVGG
Concordia seated left, holding patera and double cornucopiae.

Minted in Rome in 245-247 A.D.

Reference:
Mattingley, Sydenham, & Sutherland, "Roman Imperial Coinage", Volume 4, Part 3 (RIC), p83, nr 125 (c)
Sear, D.R., "Roman Coins and their Values" (RCV Millennium Edition), Vol. 3, p173, nr. 9147
Sear, D.R., "Roman Coins and their Values" (RCV 4th Revised Edition), p242, nr. 2625
Cohen, H, "Descriptions Historique des Monnaies frappees sous l'Empire Romain" (C), Volume 5, p144, nr. 4
Seaby, H.A. & Sear, D.R., "Roman Silver Coins" (RSC), Volume 4, p17, nr. 4
Van Meter, D., "Handbook of Roman Imperial Coins", p229, nr. 1
Suarez, R., "Encyclopedia of Roman Imperial Coins II" (ERIC II),  p452, nr 12 (B3, O1, R4, T6, M2)

Quality: obverse: Very Fine+, reverse: Fine
Rarity: C (Common)