I took the following coin to my local Numismatist and they could not identify it. This was part of a meager inheritance but it was separated and stored as if it had a lot of meaning to my relative. Exhaustive searches lead me to believe that it is a coin with Antoninus Pius on the front and possibly Roma or Brittania on the back? I'm trying to determine if there is a need to insure. Thank you for any input that you can give! I'm feeling a bit of overwhelmed by this.