This is def a Victorinus.
As far as the field marks go can I see what could be a palm branch in the right field?

None of these variants are listed in RIC but examples were found in the Chalfont, Cunetio and Appleshaw hoards. Most were original issues and others unofficial.
Maybe I'm seeing things, in hand you may do better, if its not a Palm then I would guess at a 'P'.