A man, ca. 225-250 AD (detail).
The color scheme here is exceptional: Egyptian blue has been used in
the flesh areas, giving a more purple hue, and with the deep shadows
and pale background the sitter looks as though he is seen in bright
moonlight.
The black frame is interrupted on the right by an applied crescent
moon of stucco; balancing it on the left was a circular object - the
full moon or the sun. To the right of the man's face is an object
painted in green, perhaps a plant.
[picture 88 of the book]