Hi dapee!
The list of jbaran is the exhaustive list of
Siscia from
RIC VII. But I think your
altar don't fit to any picture of this list. So I did further research and found this:
1. The
legend on your coin may be VICTORIAE LAETAE and least 5 more letters.
2. Looking a long time on your pic (with nearly closed eyes) it seems to me it could be a St.
Andrews cross, a
bit faded!
Looking at other mints than
Siscia I found Trier (
Treveri). There in
RIC VII p.224 is an Appendix: Irregular coins of the Victoriae laetae
type.
In the list of these mostly barbarous coins is the following:
VICTORIAE LAETAE PRINC,
writing VOT R
obv. IMP CONSTA - NTI - NVS
AVG,
bust laureate, helmet,
cuirassed, right
in
exergue PTR (you can see only the most upper parts of these letters, but they fit, Jochen)
on
altar cross of St. Andrew
semi-barbarous (CF) (I don't know what CF means, Jochen)
Reading this I for myself think the depiction looks a
bit coarse, so this semi-barbarous
attribution could be correct!
So, that's all! I'm very interested in further information!
Regards,
Jochen