Champlevé enamel on gilded copper.
pictured is in Numbers 21:4-9. This passage does not
mention Aaron: God tells Moses to put up a pole with a
bronze serpent at the top; those who gaze on it will be
cured of the bite of a certain serpent. Thus, one would
expect the figure pointing to the serpent would be Moses.
But is the thing on his head a pair of horns,
conventionally an attribute of this prophet, or are the
horns part of the headpiece usually shown on Aaron?