In the first days of August 1914, as armies mobilized, the peacetime gold window closed across Europe. Britain’s Currency and Bank Notes Act of 6 August put Treasury notes of one pound and ten shillings into daily use and made Bank of England notes legal tender more broadly, while gold exports were blocked or licensed. The mark, the franc, and the other gold names stayed on coins and accounts. The public could no longer test those names at the teller.
Before that summer a holder could still turn a major currency into gold at a fixed rate, which is what the classical gold standard was in practice: convertibility, shipment of metal, and settlement through London. What came after the war was not the same system with a pause. It was a different architecture.
The peacetime promise
Before 1914 the international monetary system was a set of practices, not a single treaty. A currency on the classical gold standard could be turned into a defined weight of gold, so notes and deposits were claims that, in ordinary times, became coin or bullion at a published mint price, and the metal itself could still be shipped in or out.
A holder who wanted metal had to know which promise he held. The mint price named the gold in the unit, a note was a claim he could present at the window, and a deposit was only a book entry he could draw as notes or coin. People took the paper because that window still paid, not because a conference had called the paper gold.
Membership was a habit, not a club card. Britain had been on gold, in the modern sense, since the early nineteenth century, and Germany, France, and the others joined as they defined their units in gold and opened the window. The United States did so after resumption and the Gold Standard Act of 1900. No treaty held the map together. Each national promise pointed at the same metal, so the promises could be exchanged.
Gold points and London settlement
That convertibility, plus the cost of shipping metal, produced gold points. Sterling’s mint par against the dollar sat near $4.86. If sterling cheapened far enough, a New York house could take gold in London and ship it home more cheaply than paying the market rate. If sterling dearened, gold moved the other way. The band was mint par plus freight, insurance, and interest while the metal was at sea — a few cents either side of $4.86.
Inside the points, bills and credits did the settling. Outside them, gold actually moved, and a broken promise showed up as a drain that a central bank had to reverse or else lose the right to call its paper a gold claim.
London was the centre. Sterling bills financed trade far from Britain. The Bank of England’s Bank rate was the price of credit in that market. Raise the rate, and balances and metal were pulled toward Threadneedle Street. Lower it, and gold could leave. Quieter “gold devices” — the price paid for bars, the terms of advances — moved the cost of taking metal by a few pennies. They did not abolish the points. People and foreigners could still ask for gold.
The real constraint
Textbooks later called this the “rules of the game”: lose gold, tighten; gain gold, ease. Real central banks did not always play that cleanly. They sterilised flows, used gold devices, and protected domestic credit when they could. The constraint still mattered. A bank that promised gold on demand could not expand without limit if people and foreigners were free to take the metal. Close the window, or block the ship, and the same note is wartime paper that still spends if the public will hold it.
The United States entered the century with a gold dollar and, after 1913, a new central bank. The classical system around that Fed was already older than the Fed. 1907 had been a trust-banking liquidity failure; metal still defined the unit. The break with convertibility came from war, not from that panic.
Why 1914 ended it
The First World War made convertibility and free gold movement incompatible with war finance, because governments needed to spend faster than tax and genuine borrowing would allow. Gold exports were blocked or licensed, notes were shielded from internal drains, and stock exchanges closed. The peacetime machine had assumed ships, open windows, and a public willing to hold paper because it could still test the paper.
Britain’s Currency and Bank Notes Act of 6 August 1914 is one legal marker of that summer, and similar suspensions ran across the belligerents through the autumn. England’s Restriction in 1797 had been an earlier wartime stop of gold payout, with resumption in the 1820s, and 1914 was another stop of the same kind. What did not return after 1918 was the old machine: several centres, private convertibility, and gold that moved when the points were hit.
The United States, not yet in the war, stayed closer to gold than the European combatants. New York, not London, became the place dollars and gold accumulated. That does not mean the classical system survived. A standard that only some members still honour, while the rest fight on inconvertible paper, is no longer the pre-1914 order.
A short timeline
The order, not every local statute:
- Before 1914. Convertibility, gold shipment, gold points. London at the centre.
- July–August 1914. War. Gold exports blocked or licensed. Notes protected. The stop is gone for the belligerents.
- 6 August 1914. Britain’s Currency and Bank Notes Act; Treasury notes; similar suspensions on the Continent.
- 1914–18. War finance on inconvertible paper. Prices rise; the gold name remains on some coins and accounts.
- 1922, Genoa. A gold-*exchange* sketch: hold currencies that are themselves gold-convertible, instead of gold. Not the old machine.
- 1925–1931. Britain restores the pre-war gold parity, then leaves gold. Other “returns” reuse the word. The old private convertibility does not come back.
What came after was not a pause
After 1918 many countries tried to “return to gold.” They reused the word. They did not restore the old machinery. Genoa asked members to hold gold-convertible currencies as reserves, which is a gold-*exchange* design: one or two centres that still paid metal, and a ring of claims on those centres. It is not several windows with gold moving between them when the points are hit.
Britain’s 1925 return at the pre-war sterling–dollar parity reused a number and did not rebuild the world of 1913. In 1931 Britain left gold again. Other interwar “gold standards” were pegs, exchange controls, and official gold — a familiar name on a different architecture.
Where the wartime stop never returned, paper could run for the Treasury. Germany’s mark later collapsed into hyperinflation — war finance first, then a unit that ceased to work as money. That was not a pause in the classical system. The peacetime machine of convertibility, gold points, and London settlement had ended in the summer of 1914.