Yeah, the scan is bad. I'll probably have to take it out of the holder. I'm not sure if it is roman, but it was found in England by my friend who was erecting a brick wall at his house. He found three of them, gave me one.
Constantius II falling horseman but not worth the effort of asking if it is not worth the effort of taking out of the holder. If I am correct on this ID, it is a poor example of the most common Roman coin so its value is in that it was found where it was found.
