I'm still a little confused about what exactly makes this coin "unique". There are plenty of Carausius denarii types listed on Wildwinds, so it's not the simple fact of being a Carausius denarius (as the article seems to imply). Is it a unique reverse type? Or the combination of a figure of Salus with a FORTVNA AVG inscription?
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis