Licinius II, AE, Rome, 318-319 AD.

LICINIVS IVN NOB C, laureate, draped, cuirassed bust right.
VIRTV-S AVGG, Campgate seen from above in perspective, 
with four turrets, six layers, closed doors. 
P-R across fields.
Mintmark RP.

RIC VII Rome 182 var (3-D view of campgate).
Unpublished. The owner wishes to remain anonymous (much to Zach's
despair).