For example , the front and back covers of the Lorsch Gospels are of a 6th - century Imperial triumph , adapted to the triumph of Christ and the Virgin .
Ivory carvings , often for book covers , drew on the diptychs of Late Antiquity .
The front and back covers of the Lorsch Gospels are of a 6th - century Imperial triumph , adapted to the triumph of Christ and the Virgin .
Ivory carvings , often for book covers , drew on the diptychs of Late Antiquity .