The Chronography of 354 AD. Part 5: Signs of the Zodiac. MGH p.47.
The Chronography of 354 AD. Part 13: Bishops of Rome. MGH Chronica Minora I (1892), pp.73-6.
The Chronography of 354 AD. Part 15: The book of the generations. MGH , pp.89-140.
The Chronography of 354 AD. Part 7: Pictures of the emperors. Die Calenderbilder , Berlin (1888) figure 34-35.
Notes
These two portraits appeared on folio 20 verso and 21 recto of the archetype. They represent Constantius II (seated and wearing a diadem, and dispensing money) and the Caesar Gallus (holding an image of Victory). Both are from the Barberini ms. in Rome.