Examination of the Imperial Potraiture at the time of the Tetrarchy (A.D. 293-311). I look at the different artstyles and choice of material. There is quite a sharp distinction between eastern and...Show moreExamination of the Imperial Potraiture at the time of the Tetrarchy (A.D. 293-311). I look at the different artstyles and choice of material. There is quite a sharp distinction between eastern and western portraits; of which the cause is explained.Show less