The Principality of Seborga consists of about 14 square kilometers on
the Italian Riviera near France. It became a Principality in 1079.
In 1729 it was sold to the King of Sardinia. Unfortunately someone
forgot to do the paperwork so the change was never officially
registered with the Kingdom of Sardinia. Seborga was not mentioned in
the Act of Unification of Italy or subsequent acts, thus it still
considers itself independent. It has its own flag, coins, stamps,
passports, and automobile license plates. In 1995 and 1996 it issued
its first and only coins since the 17th century. The mintages of all
the coins were limited and are now quite difficult to obtain.