Gordian III & Tranquillina AE31 Singara, Mesopotamia. Tyche
Obv: Confronted busts of Gordian on l., laureate, draped and cuirassed, and Tranquillina on r., draped and wearing stephane.
Rev: Tyche seated l. on rock, holding branch; the centaur Sagittarius above to l., discharging arrow, river god swimming l. below.
SNG Cop. 256. AD 238-244. 23.16g. Patina vastly different per side.