The closest known parallel the Book of Mormon golden plates in size, script, function and period are the Pyrgi gold plates. They are religious text dating to around 500 BC in Italy; one is written in Phoenician (= Paleo-Hebrew), and two in Etruscan. They are now in the Etruscan Museum in the Villa Giulia in Rome.
1- Three plates–Phoenician text is in the Middle
2- The Phoenician plate.