Finally an E atrium with white plastered pavement and a NE side-chamber were added. Both the inner walls and the newly built arch in the centre of the room were plastered. This observation leads us to the conclusion that the inner walls of room n. 1 were plastered at least once before the fourth century. This conclusion is in line with the palaeographic study of the graffiti the oldest of which are dated by Fr. The geometric decoration is made up of rectangular panels, lozenges, circles, floral crosses etc.
Floral motifs are also recognisable, such as branches, small trees, flowers, figs and pomegranates.
Apparently no human or animal representations were allowed. Last but not least, several graffiti, monograms and symbols were found. This precious material was studied and published by Fr. Although the interpretation of the inscriptions is far from easy, due to the fragmentary and precarious state of preservation, yet some very important conclusions are beyond any reasonable doubt. The Christian character of the domus-ecclesia is clearly vindicated.