to decoratively frame the inscription on the arch. This is evident through the gilding and sizing of the letters. Because the letters were gilded, the reflection on them during a sunny day would have made the sentences hard to read, but they would have been legible in the afternoon. The dowel-holes on the base of the attic show that there used to be some sort of metal ornament attached, most likely in the form of floral or trophic symbols. The attic has cornices with Lesbian cymation with a rosette around the inscription and there is double molding with an Acanthus bands as well. The arch uses the style that was common in Imperial architecture that used the Corinthian columns. Iconography Throughout the arch, there are many reliefs. Near the spandrels of the arch entryway are flying Victorias that mark the victory of the emperor. There are four statues underneath the Victorias that represent the four seasons. Prisoners of war are shown on the pedestals nearest to the ground floor. Visitors walking through the arch would see these images, and be reminded of the imperial victories of Septimius Severus. Some of these prisoners have gloom faces, and others have their hands behind their back while Roman soldier stands behind them. The loot and booty taken by Septimius Severus and his men are shown under the four main reliefs. The loot is being transported on a cart being pulled by a large animal. The arch has four main relief panels that show scenes of the Roman wars against the Parthian Empire. Relief one: The arch represents the siege of Nisibis from 195 AD in the first Parthian war. The knight who stands guarding the city gate is the knight whom Septimius Severus had to protect the city of Nisibis after the war. Nisibis is shown in the first panel because it is considered the causa belli (instigator of a war) to the first war against the Parthians. The small building towards the bottom of the panel represents the Roman camp that was put up during the siege of Nisibis by the Osroeni and Adiabeni who were defeated by Severus. The multitude of figures represent the battle in which Severus defeated Osroeni and Adiabeni in the first Parthian war. Relief two: This scene has many interpretations. One interpretation of this panel is that it is a scene of a revolt of Edessa, an