 Vending machines that are not equipped with an up-to-date coin-checking system might therefore accept them as €2 coins.This similarity is because both coins are minted on the model of the defunct Italian 500 lire coin, the world's first modern bi-metallic coin.To mint its 10 baht coin in 1988, the Thai government had to be allowed by the Italian mint, which had an international copyright over bi-metallic minting.