I'd also go for a fake/copy.
btw, the link you posted in the other topic is not your coin as your coin bears
TR P III (third Tribunician Power i.e. year 224) while the one in the catalogue bears
TR P (1st Tribunician Power i.e. year 222).
Have a look
here for two similar coins.
Sapientiae plerumque stultitia est comes.
Si c'est un grand plaisir d'être reconnu par ses amis, c'est peut-être encore plus flatteur d'être reconnu par ses adversaires.
Be yourself; everyone else is already taken.