The exhibition “Athenian Owls” is organised by the Numismatic Collection of the Bank. It constitutes a reference to the best known coin of antiquity the “Athenian Owl”, the tetradrachm of the city of Athens bearing the head of the goddess Athena on the obverse and the owl on the reverse. This coin exceeded the boundaries of the issuing authority and was widely used in international transactions for a long period of time.