The measuring point on the lower abdomen of this figure must have been put in during or before roughing-out and served as a reference point during carving. Why it was left is not clear though perhaps this relief was rushed into place.
Tooth chisel marks are visible on the lower legs and around the underside of the emperor's righthand knee. These represent a stage of shaping before work with the flat and round-headed chisel.
A round-headed chisel, the marks of which are especially clear around his righthand knee, was used in conjunction with the flat chisel to finely shaped the body of the emperor.
A channelling tool is used to achieve depth in the drapery to the right following initial work with the drill.
Notes
The righthand knee of the emperor in this detail is very quickly carved, the crease running across the top of it simply modelled with a round-headed chisel. This is very fast carving and is typical of many of the Sebasteion panels.