The gold-exchange standard worked as follows: The United States remained on the classical gold standard, redeeming dollars in gold. Britain and the other countries of the West, however, returned to a pseudo-gold standard, Britain in 1926 and the other countries around the same time. British pounds and other currencies were not payable in gold coins, but only in large-sized bars, suitable only for international transactions. This prevented the ordinary citizens of Britain and other European countries from using gold in their daily life, and thus permitted a wider degree of paper and bank inflation. But furthermore, Britain redeemed pounds not merely in gold, but also in dollars; while the other countries redeemed their currencies not in gold, but in pounds. And most of these countries were induced by Britain to return to gold at overvalued parities. The result was a pyramiding of United States on gold, of British pounds on dollars, and of other European currencies on pounds—the “gold-exchange standard,” with the dollar and the pound as the two “key currencies.”
— Murray Rothbard; What Has Government Done to Our Money?