Mogontiacum: Roman city, capital of Germania Superior, important military base, modern Mainz.
A replica of an ancient milestone at the crossing of the Betzelsstraße and the Fuststraße modern Mainz. The inscription is as follows:
...] PIO FELICI INVIC[TO]
AUGUSTO PONTIFICE MAXIMO
[...] TRIBUNICIAE POTESTATI[S]
Which can be translated as
to the pious, lucky, unconquerable
emperor, pontifex maximus,
in the ... year of his tribunicial powers
father of the fatherland
consul for the ... time.
The emperor cannot be identified.