The museum documents the circulation of money on the Island of Elba in the various phases of its history, highlighting the types and specificities of Piombino coinage, and illustrates the activities that took place in an ancient mint, with the minting carried out by hammer. Also on display is a collection of coins minted in the Principality of Piombino, dated between the end of the 16th century and the end of the 17th century.