Identify.

Saepinum Gate, 15 CE, Saepinum (Roman colony), opus reticulatum (diamond shaped blocks put into the concrete), style has strong Italic ties (similar to gates from the past ie. Voltera), inscription on the gate says that it was built by Tiberius, protome on keystone (human head, possibly apatropaic), 2 high relief sculptures on either side are of bound captives, for those living there these defensive infrastructure projects show stability, for outsiders the two relief sculptures serve as a warning of what will happen if they try to breach the wall.