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Stable-ish but I'm not sure about the history of it being pegged to metal but I don't think so as we are still a relatively new country in the whole scheme of things and inherited everything from the British when they invaded and colonised the continent with the POHMS- Prisoners of Her Majesty and the gaolers- who were more often than not, far FAR worse than the prisoners...

Gotcha, so maybe the gold is in Britain's vaults. Over here, when Brazil became independent, the royal court of Portugal went back to Europe taking the treasury \o\