 The discrepancy between gold content of electrum from modern Western Anatolia (70–90%) and ancient Lydian coinage (45–55%) suggests that the Lydians had already solved the refining technology for silver and were adding refined silver to the local native electrum some decades before introducing the pure silver coins cited below.In Lydia, electrum was minted into coins weighing , each valued at 1/3 "stater" (meaning "standard").Three of these coins—with a weight of about —totaled one stater, about one month's pay for a soldier.