Help with a Tombstone in Bologna!

[Praefectusclassis]

In the meantime, I have found a possible reason for the 'false'-tag in CIL XI: the CIL editors used them as well when the inscription under consideration did not belong in the region under consideration. And that IS true, because it comes from Egypt ending up in a collection in Bologna. We may perhaps now consider the mystery solved. He'll be up in the imagebase shortly!