Among the sculptures which belong to the earlier and better period are the large reliefs under the central arch and those which are placed on either end of the attica. These four were originally parts of a larger relief which has been sawn into four equal pieces for the purpose of adorning Constantine’s arch. The order in which they stood in the original design has been pointed out by Bellori. The first part is that now placed on the inside of the middle archway towards the Coliseum, the second stands on the side of the attica over the arch towards the Cælian, the third on the inside of the middle archway towards the Palatine, and the fourth upon the attica on the same side. When united they represented Trajan crowned by Victory, with the goddess Roma standing near, a battle between Dacians and Romans, ending in the defeat and submission of the barbarian army. The dress of the Roman soldiers and of the Dacians is similar to that represented on Trajan’s column, and quite different from the Roman military habit in the age of Constantine. Beside these four rectangular reliefs the eight circular sculptures which stand over the smaller archways belong to the time of Trajan. They represent hunting scenes and sacrificial ceremonies. One of them, the second from the left, upon the side towards the Coliseum, has a remarkable figure of the Emperor with a nimbus or cloud encircling his head, exactly similar to those represented round the heads of modern saints. The eight large reliefs upon the attica over the side archways are also of the workmanship of Trajan’s time, and commemorate some of the exploits of that emperor, among which may be mentioned the construction of a road through the Pontine marshes represented upon the second relief from the left on the side of the attica towards the Coliseum. The reclining figure with a wheel represents the road, and the other figures the surveyors, one of which is perhaps Apollodorus, the famous Greek architect of Damascus. The other reliefs upon the sides of the attica represent interviews of Trajan with barbarian princes, and the common sacrifice of the Suovetaurilia, so frequently depicted on the reliefs of the columns of that emperor, and also on the large marble screens now standing in the Forum Romanum. The remainder of the sculptures belong to the Constantinian era, and contain, viewed as works of art, nothing worth attention. One of them on the side next to the Coliseum is, however, of great interest to the antiquarian, as it represents the rostra of the later Empire and the northern end of the Forum, with the arches of Severus and Tiberius, and the end of the Basilica Julia, and another, on the side towards the Via di S. Gregorio representing the victory of Constantino over Maxentius at the Milvian bridge, is historically valuable.