Here is a Licinius from Rome with the cryptogram in the mintmark. The middle part, EROS, is in Greek; which in Latin is amor. Amor and Roma are palindromes-- they read the same backward or forward.
Licinius I
A.D. 320- 312
19mm 2.9gm
IMP LICINIVS AVG, laureate, draped and cuirassed bust right.
D N LICINI AVGVSTI surrounding wreath enclosing VOT XX.
In ex. R EROS S
RIC VII Rome 228
