Gordian III & Tranquillina AE 26mm. of Anchialus, Thrace. 

AVT K M ANT GORDIANOC AVG CAB-TRANKVL-LEINA, laureate, 
draped bust of Gordian III right facing draped bust of
Tranquillina.
OVLPIANWN AGXIALEWN, Athena seated left, holding patera and spear, shield leaning against throne.

Varbanov 750 (this coin).

With permission of cngcoins.com, 2009.