Suspiciously well preserved but then Roman Aurei (Aurius's?) didn't tend to circulate much. Compare the ware of a Kennedy half dollar to a quarter of the same year.
Here's an image of a similar coin that's about 50 years older. 
The reverse inscription, which translates to something like "agreement of the army" relates to the fact that old Nerva came to power after his esteemed predecessor, the Emperor Domician was whacked in the tepidarium of the imperial palace by a guy his old lady and some senators hired.
The army liked Domician and Nerva obviously thought it was a good idea to let everybody know there were no hard feelings and the army was in fact very happy.
Being emperor was a tough job in those days.