Postumus (260-269 A.D.) -  AR Antoninianus - 19.62mm, 2.77g
Obverse - IMP C POSTVMVS PF AVG
Postumus, his radiate draped and cuirassed bust right
Reverse - SAECVLI  FELICITAS
Postumus in military dress standing right, holding spear and globe.

Minted in Colonia Claudia Agrippina Augusta (Cologne, Germany) in 265-268 A.D.

Reference:  
Webb, P.H., "Roman Imperial Coinage", Volume 5, Part 2 (RIC), p363, nr. 325C.
Sear, D.R., "Roman Coins and their Values" (RCV Millennium Edition), Vol. 3, p363, nr. 10983.
Sear, D.R., "Roman Coins and their Values" (RCV 4th Revised Edition), p272, nr. 3125.
Cohen, H, "Descriptions Historique des Monnaies frappees sous l'Empire Romain" (C), Volume 6, p51, nr. 331.
Seaby, H.A. & Sear, D.R., "Roman Silver Coins" (RSC), Volume 4, p126, nr. 331a.
Van Meter, D., "Handbook of Roman Imperial Coins" (VM), p268, nr. 58.
Suarez, R., "Encyclopedia of Roman Imperial Coins" (ERIC II),  p553, nr.170 (B29, O20, R142, T123, M1).
Kampmann, U., "Die Münzen der römischen Kaiserzeit", 2nd edition, (Kampmann) p334, nr. 98.56.

Quality: Very Fine-
Rarity: C