Convert from oncia [Italy] to obol, obolos, obolus [Greece]

Unit Definition (oncia [Italy])
The onça, once, oncia, onza is traditional names for the ounce unit in Romance languages. The Italian oncia or onza is no longer used, but traditionally it equaled 1/12 libra or about 27.3 grams (0.96 ounce).

Unit Definition (obol, obolos, obolus [Greece])
The obol, obolos, obolus [Greece] is a historic unit of weight or mass. The obol is a very small weight that originated as the weight of a tiny Greek coin. In modern Greece, the obolos is an informal name for the decigram (0.1 gram).