Your two coins appear to be identical with each other, therefore modern replicas; no two genuine ancient coins
of the same type
are ever exactly identical.
You show the back sides only; apparently copied from the aureus type
of Licinius I
emperor 308-324 AD) shown below, with reverseGLORIA
EXE - RCITI AVGG
NN, The Glory of the Army
of our Two Emperors, Emperor on horseback left, below ground line mintmark
, first workshop).Obverse
LICINI - VS P F AVG
, his head
right wearing laurel wreath
The original, as you see, is in gold not silver, and very rare
; maybe only two known, namely the specimen shown here, from a Spanish auction
, and another reproduced in Calico
, The Roman Aurei
, no. 5093.
The appearance of your replicas in silver, however, makes me wonder: maybe the aurei
too are just modern inventions? And indeed: the Calico
coin is in Forvm
's fake reports
as a fake
, shown alongside a similar gold example which is stated to be genuine.