It takes a lot to spook the solid old gold market. But when it emerged last week that one or more banks had lent 380 tonnes of gold to the Bank of International Settlements in return for foreign currencies, there was widespread surprise and confusion * * * According to the World Gold Council, central banks in Greece, Spain and Portugal held 112.2, 281.6 and 382.5 tons of gold respectively in June – leading analysts to point fingers at Portugal, or a combination of the three. But an analyst from UBS noted that eurozone central banks would be severely limited...