Gordian III, AE29 Pentassarion of Istros, Thrace.

AVT K M ANTWN GORDIANOC, laureate, draped, cuirassed bust right.
ICTRIHNWN, Tyche standing left, holding rudder on globe
and cornucopiae. E in upper left field. 

Varbanov 683.

Used with permission of CNG coins, www.cngcoins.com, Jan, 2011