Postumus (260-269 A.D.) -  AR Antoninianus - 21.30mm, 2.87g
Obverse - IMP C POSTVMVS PF AVG
Postumus, his radiate, draped and cuirassed bust right
Reverse - SALVS  AVG
Aesculapius standing facing, looking left, leaning on his staff;
a globe at his feet on the right.

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 326C.
Sear, D.R., "Roman Coins and their Values" (RCV Millennium Edition), Vol. 3, p363, nr. 10985.
Sear, D.R., "Roman Coins and their Values" (RCV 4th Revised Edition), p272, nr. 3127.
Cohen, H, "Descriptions Historique des Monnaies frappees sous l'Empire Romain" (C), Volume 6, p52, nr. 336.
Seaby, H.A. & Sear, D.R., "Roman Silver Coins" (RSC), Volume 4, p126, nr. 336d.
Van Meter, D., "Handbook of Roman Imperial Coins" (VM), p268, nr. 60.
Suarez, R., "Encyclopedia of Roman Imperial Coins" (ERIC II), p553, nr.173 (B29, O20, R147, T004, M1)
Kampmann, U., "Die Münzen der römischen Kaiserzeit", 2nd edition, (Kampmann) p334, nr. 98.58-2.

Quality: Fine+
Rarity: C