239 AD., Gordian III, Rome mint, Dupondius, RIC 269b.

Gordian III, Rome mint, emission 3a, 239 AD.,
Æ Dupondius (23-24 mm / 9,61 g),
Obv.: IMP CAES M ANT GORDIANVS AVG , radiate, draped, and cuirassed bust of Gordian right, seen from behind.
Rev.: LIBERALITAS AVG II / S - C , Liberalitas standing facing, head left, holding coin counter and cornucopiae.
RIC IV, III, 45, 269b (R) ; Coh. - .

Chronology according K. Pink, Der Aufbau der römischen Münzprägung in der Kaiserzeit, III, Numismatische Zeitschrift 68 (1935), p 12-34.

Curtis Clay 30/11/09:
"Two in the six museum collections: BM and Vienna.
One in Berk photofile: Lanz Graz IV, 1974, 649. Well worn, obv. die might be the same as yours, rev. hard to tell."