You do not say the size annd
weight again so I think this is an AS not
Dupondius, This would be
RIC II # 434 (modified this looks like it is
radiate so I would think
Dupondius also but
RIC shows an AS, I will need to check closer)
SPQR
from
forum " S. P. Q. R. Letters which were used by
the
Romans on their coins, standards, and
public monuments, to signify
Senatus Populusque
Romanus. (The Senate and the
Roman People). --
These initials appear on several coins of uncertain families. They stand as an
inscription by them-
selves, with some
type or other, on coins of
Augustus,
Galba,
Faustina jun.,
Gallienus, &c.
Good LuckPete