Official gold reserves

A gold reserve is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency.

It has been estimated that all the gold mined by the end of 2011 totaled 171,300 tonnes. At a price of US$1,500 per troy ounce, reached on 12 April 2013, one tonne of gold has a value of approximately US$48.2 million. The total value of all gold ever mined would exceed US$8.2 trillion at that valuation.

However, there are varying estimates of the total amount of gold mined to date, mainly because gold has been mined for thousands of years around the world. Another reason is that some countries are not particularly open about how much gold they are mining. In addition, it is difficult to account for gold output in illegal mining activities.

During most of history, a nation's gold reserves were considered its key financial asset and a major prize of war. A typical view was expressed in a secret memorandum by the British Chief of the Imperial General Staff from October 1939, at the beginning of World War II. The British Military and the British Secret Service laid out "measures to be taken in the event of an invasion of Holland and Belgium by Germany" and presented them to the War Cabinet:

It will be for the Treasury in collaboration with the Bank of England, and the Foreign Office, to examine the possible means of getting the bullion and negotiable securities into the same place of safety. The transport of many hundreds of tons of bullion presents a difficult problem and the loading would take a long time. The ideal would of course be to have the gold transferred to this country or to the United States of America. [...] The gold reserves of Belgium and Holland amount to about £70 million and £110 million respectively. [Foot]Note: H. M. Treasury has particularly requested that this information, which is highly confidential should in no circumstances be divulged. The total weight of this bullion amounts to about 1800 tons and its evacuation would be a matter of the utmost importance would present a considerable problem if it had to be undertaken in a hurry when transport facilities were disorganized. At present this gold is believed to be stored at Brussels and The Hague respectively, neither of which is very well placed for its rapid evacuation in an emergency.

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