Probus, his radiate, helmeted and cuirassed bust left,
holding shield and spear. Shield decorated with a gorgoneion.
XXI in Exergue. VII in right field.
Concordia standing left, holding patera and cornucopiae.
Reference:
Webb, P.H., "Roman Imperial Coinage", Volume 5, Part 2 (RIC), p88, nr. 660g (obverse 3G).
Sear, D.R., "Roman Coins and their Values" (RCV Millennium Edition), Vol. 3, p472, nr. 11966, obverse variety Fh.
Cohen, H, "Descriptions Historique des Monnaies frappees sous l'Empire Romain" (C), nr. 157.
Suarez, R., "Encyclopedia of Roman Imperial Coins" (ERIC), p365, nr.39, (B08, O35, R021, T004, M6)
Suarez, R., "Encyclopedia of Roman Imperial Coins II" (ERIC II), p679, nr. 1792 (B72, O74, R004, T056, M4)
Suarez, R., "Encyclopedia of Roman Imperial Coins II" (ERIC II-digital), p571, nr. 1792 (B72, O74, R004, T056, M4)
Van Meter, D., "Handbook of Roman Imperial Coins" (VM), p262, nr 43?, variety Ol/3a.
Kampmann, U., "Die Münzen der Römischen Kaiserzeit", 2nd. revised edition (Kampmann), p361, nr. 112.28.1.
Coin featured on Grzegorz Kryszczuk's Probus site (http://www.probvs.net) at: RIC.660.html
in the Tantalus online coin registry (http://www.tantaluscoins.com) at http://www.tantaluscoins.com/coins/8032.php
The reverse image is featured in ERIC on p368, as the plate coin for Probus' Reverse Type 4.
Quality: Very Fine+, with complete silvering left on coin
Rarity: Unknown (variety with Gorgoneion/Medusa on the shield of Probus appears to be quite rare)