Caracalla, AE29 of Pautalia, Thrace. 

AYT K M AYRH ANTWNEINOC, radiate, draped, cuirassed bust right.
OYLPIAC PAYTALIAC, Septimius Severus and Caracalla, both 
togate, standing facing each other, holding large
globe between them. 

Varbanov 5287 (this coin).