  We discuss the presence of symmetries in images engraved on ancient seals, in
particular on stamp seals. Used to stamp decorations, to secure the containers
from tampering and for owner's identification, we can find seals that can be
dated from Neolithic times. Earliest seals were engraved with lines, dots and
spirals. Nevertheless, these very ancient stamp seals, in the small circular or
ovoid space of their bases, possess bilateral and rotational symmetries. The
shape of the base seems to determine the symmetries of images engraved on it.
We will also discuss what could be the meaning of antisymmetry and broken
symmetry for images on seals.
