Probus (276-282 A.D.) -  AE Antoninianus - 22.82mm, 4.06gr
Obverse - IMP C PROBVS AVG
Probus, his radiate bust left, wearing imperial mantle and
holding an eagle-tipped sceptre in his right hand.
Reverse - SALVS AVG
TXXI in Exergue. V in right field, star in left field.
Salus standing right feeding serpent in her arms.

Minted at Ticinum (Pavia, Italy), 10th emission, 3rd officina in 281 A.D.

Reference:  
Webb, P.H., "Roman Imperial Coinage", Volume 5, Part 2 (RIC), p71, nr. 499h (obverse 5H)
Sear, D.R., "Roman Coins and their Values" (RCV Millennium Edition), Vol. 3, p479, nr. 12029, variety from Ticinum mint
Cohen, H, "Descriptions Historique des Monnaies frappees sous l'Empire Romain" (C), nr. 577
Van Meter, D., "Handbook of Roman Imperial Coins", p262, nr 43, variety Ol/3a.
Suarez, R., "Encyclopedia of Roman Imperial Coins" (ERIC),  p365, nr.83, (B20, O22, R124, T089, M7)
CGB, "Le Monnayage de Probus", 249-256

Quality: Very Fine+
Scarcity: C