Andreas is right, this is definitely a bronze coin, not silver; and
I strongly doubt it is from Assos.
Whilst your
obverse is, as you indicate, the
head of
Athena, the
reverse is virtually unascertainable with the image provided.
Try photographing the
reverse again, using a couple of different
lighting angles, and that may show the relief better. The
pitting on the surface does not
help much either!
Walter
Holt
