The scudo (plural: scudi) was the currency of the island of Sardinia until 1816. It was subdivided into 2½ lire (singular: lira), each of 4 reales, 20 soldi, 120 cagliarese or 240 denari. The doppietta was worth 2 scudi. It was replaced by the Sardinian lira.
Coins
In the late 18th century, coins circulated in denominations of 1 and 3 cagliarese, 1 soldo, ½ and 1 reale, ¼, ½ and 1 scudo, 1, 2½ and 5 doppietta. The cagliarese denominations were struck in copper, the soldo and reale in billon, the scudo in silver and the doppietta in gold.
References
Sardinian scudo Wikipedia(Text) CC BY-SA