Caracalla, AE30 of Augusta Trajana, Thrace.

AVT K M AVRHL ANTWNINOC, laureate head right.
AVGOVCTHC TRAIANHC, city-gate flanked by two 
battlemented towers, a third tower rising from
the centre.

Varbanov 1097

Courtesy of Antike Muenzen Auction, 2001.