Blog · 2026-10-19 · History · Metals

The Peseta Was Born as Real Silver. It Ended at 166 to the Euro

On 19 October 1868 Spain made the peseta its money, a fixed weight of silver and gold. More than 130 years later it was locked at 166.386 to one euro.

Title card reading The Peseta Was Born as Real Silver. It Ended at 166 to the Euro, with a silver five-peseta coin and a page of the 1868 decree.
19 October 1868 — Spain's finance minister signs the decree that makes the peseta the country's money.Title image from the GoldSilverHQ X Article on the peseta that was born as real silver.

On 19 October 1868, three weeks after a revolution chased Queen Isabella II into France, Spain's new finance minister signed a decree that made the peseta the country's money. It lasted more than 130 years. It began as a fixed weight of silver and gold, and it ended at 166.386 pesetas to one euro.

19 October 1868 is the day of the signature. The three weeks are the gap since the queen left the country. More than 130 years is the life of the name. The beginning is a weight of silver and a weight of gold. The end is a locked conversion: 166.386 pesetas for one euro.

A holder of the first coins could read the metal on the piece itself. A holder of the last pesetas had a rate against the euro.

A professor inherits the treasury

The minister was Laureano Figuerola, a Catalan economics professor and free trader who had taken over the treasury on 8 October. The uprising had begun with a navy mutiny at Cádiz in September. After the queen's army lost at Alcolea on 28 September, crowds filled Madrid's Puerta del Sol, and on 30 September Isabella crossed the border. A provisional government under General Francisco Serrano took charge, and Figuerola inherited the treasury, along with a country full of coins bearing the deposed queen's face.

8 October is the day Figuerola took the treasury. The mutiny started at Cádiz. Alcolea, on 28 September, is where the queen's army lost, and 30 September is when Isabella crossed into France. Serrano headed the provisional government. The coins still in pockets carried her face.

A photograph of that government in 1869 places Figuerola at the far left, with Prim, Serrano, Sagasta, and the rest of the cabinet. Jean Laurent took the picture.

The Provisional Government in 1869, with Figuerola at far left alongside Prim, Serrano, Sagasta and the rest of the cabinet. Photograph by Jean Laurent.Inline image from the GoldSilverHQ X Article on the peseta that was born as real silver.

Why the queen's face had to leave the coins

His decree said plainly why the coins had to go. The money of every era, it argued, carries the stamp of whoever rules. Since Spain now had "no power but the Nation," the new coins "should show to the eye only the figure of the homeland and the arms of Spain," with the Bourbon lilies wiped from the shield "forever."

The argument is that a coin shows who rules. The phrase for the new authority is "no power but the Nation." The instruction for the design is visual: the figure of the homeland, and the arms of Spain. The Bourbon lilies were to come off the shield, and the decree said "forever."

The same weight as a French franc

Since the country had to pay for new coins anyway, Figuerola used the moment to rebuild the whole system. He adopted the coin standards that France, Belgium, Italy and Switzerland had signed on 23 December 1865, the pact known as the Latin Monetary Union. Spain did not formally join and kept its "freedom of action." A peseta was struck to the same weight and fineness as a French franc.

New coins were going to be paid for anyway, because the queen's face had to go. Figuerola used that expense to change the standard. The pact is 23 December 1865, signed by France, Belgium, Italy, and Switzerland. Spain stayed outside formal membership, kept the words "freedom of action," and still matched a French franc in weight and fineness.

The map that goes with that choice shows Spain beside the four founding members, and it marks two cities: Cádiz, where the revolt began, and Paris, where the 1865 convention was signed.

Spain and the four founding members of the Latin Monetary Union, with Cádiz, where the revolt began, and Paris, where the 1865 convention was signed.Inline image from the GoldSilverHQ X Article on the peseta that was born as real silver.

What the decree fixed

The decree then wrote the unit down as a list of weights, fineness, and rules about who had to accept which coins.

One peseta equals 100 céntimos. The silver five-peseta coin is 25 grams, at 900 parts silver per 1,000. Gold coins run from 5 to 100 pesetas, also 900 fine, and the 100-peseta piece weighs 32.258 grams.

Gold coins, and the silver five pesetas, are legal tender in any amount. Anyone can bring metal to the mint and have it coined free of charge. Those are the full-weight pieces: unlimited acceptance, and coinage open to metal the public brought in.

Smaller silver coins hold less silver, 835 per 1,000. The state alone strikes them. They are capped at 6 pesetas per inhabitant. Nobody has to take more than 50 pesetas of them in one payment. The small coins are a limited tender, with less silver in each piece, and a ceiling on how many the mint may strike.

The system becomes mandatory on 31 December 1870. Until that day the decree is the rule on paper. From that day the new coins are the money the country is required to use.

The printed page is the Gaceta de Madrid for 20 October 1868, page 7, the day after the signature. Article 1 reads: "In all Spanish dominions the monetary unit shall be the peseta."

The decree as printed in the Gaceta de Madrid, October 20, 1868, page 7: "Article 1. In all Spanish dominions the monetary unit shall be the peseta."Inline image from the GoldSilverHQ X Article on the peseta that was born as real silver.

An old name on a new coin

The name was old. "Peseta" had long been the everyday word for a coin worth a fifth of a peso. The big five-peseta silver piece took over the old peso's nickname, the duro, "the hard one," and Spaniards kept counting in duros until 2002. Its reverse said exactly what it held: "LEY 900 MILESIMAS, 40 PIEZAS EN KILOG," meaning 900 fine, 40 coins to the kilogram.

A fifth of a peso is what the word peseta had already meant in daily speech. The peso was the silver coin whose wider story is how Spanish silver became the world's first global money. The five-peseta piece inherited that coin's nickname, the duro. "The hard one" is what the nickname means. Counting in duros lasted until 2002.

The reverse did not leave the contents to a nickname. 900 fine and 40 coins to the kilogram are the same 25 grams the decree had already set for the five-peseta piece. A coin of 1870, one of the first under the new system, shows seated Hispania on the front and the arms of Spain on the back.

A silver 5 pesetas of 1870, one of the first issues under the new system: seated Hispania on the front, the arms of Spain on the back.Inline image from the GoldSilverHQ X Article on the peseta that was born as real silver.

Fifteen and a half to one

The trouble was the fixed ratio underneath. The system valued one kilogram of gold at 15.5 kilograms of silver. After 1873 the world price of silver began to slide, and by 1876 the market ratio was about 18 to one. The Latin Monetary Union's members stopped coining silver freely in 1878 and drifted toward gold. Spain had already stopped private silver coinage in 1876, and it ignored its own currency board's advice to adopt the gold standard.

15.5 kilograms of silver to one kilogram of gold is the legal ratio. By 1876 the market stood near 18 to one. In 1878 the Union's members stopped free coinage of silver and drifted toward gold.

With silver overvalued at the mint, gold coins disappeared from circulation. People spent the overvalued silver and kept the gold. A legal ratio the market has left behind is the subject of bimetallism.

Paper fills the gap

Paper filled the gap. In 1874 the Bank of Spain won the sole right to issue banknotes. In the summer of 1883, after foreign investment dried up following the Paris stock market crash of 1882, the Bank stopped paying gold for its notes. It never started again. The peseta now floated.

1874 is the year the Bank of Spain became the only issuer of banknotes. In the summer of 1883, after the Paris crash of 1882 dried up foreign investment, gold payment for the notes stopped and did not resume.

By 1898, with the war against the United States paid for with heavy borrowing, a British pound cost almost 40 pesetas, against about 25 at the old franc parity.

The duro outlasts the gold link

The silver duro outlived the gold link by more than half a century. In 1939, as the Civil War ended, the state stripped silver coins of their legal tender status. On 1 January 1999, the peseta was locked at 166.386 to the euro, and after 28 February 2002, it was no longer legal tender.

More than half a century runs from the end of gold payment to the day silver coin lost legal tender. 1939 is when the Civil War ended and that status was stripped. 1 January 1999 locks the name at 166.386 to one euro. After 28 February 2002 the peseta no longer paid a debt.

The dates in order

The revolution, the decree, the ratio, the paper, and the euro lock.

  1. September 1868. A navy mutiny at Cádiz. On 28 September the queen's army loses at Alcolea. On 30 September Isabella II crosses into France.
  2. 8 October 1868. Figuerola takes the treasury under Serrano's provisional government.
  3. 19 October 1868. The decree makes the peseta the country's money. New coins are to show the homeland and the arms of Spain.
  4. 20 October 1868. The Gaceta de Madrid, page 7, prints Article 1: the peseta is the monetary unit in all Spanish dominions.
  5. 23 December 1865. France, Belgium, Italy, and Switzerland sign the Latin Monetary Union. Spain stays outside, keeps its freedom of action, and matches the franc in weight and fineness.
  6. The weights. 100 céntimos to the peseta. Silver five pesetas: 25 grams, 900 fine. Gold from 5 to 100 pesetas, 900 fine. The 100-peseta piece weighs 32.258 grams.
  7. Legal tender. Gold coins and the silver five pesetas pass in any amount, and metal brought to the mint is coined free of charge. Smaller silver is 835 fine, struck only by the state, capped at 6 pesetas per inhabitant, and limited to 50 pesetas in one payment.
  8. 31 December 1870. The system becomes mandatory. A five pesetas of 1870 shows seated Hispania and the arms of Spain. The reverse reads LEY 900 MILESIMAS, 40 PIEZAS EN KILOG. The duro nickname lasts until 2002.
  9. 1873 to 1878. After 1873 silver's world price slides. By 1876 the market is about 18 to one, against 15.5 kilograms of silver per kilogram of gold. Spain stops private silver coinage in 1876. The Union stops free silver coinage in 1878. People spend the silver and keep the gold.
  10. 1874 and 1883. The Bank of Spain becomes the only banknote issuer in 1874. In the summer of 1883, after the Paris crash of 1882, it stops paying gold for its notes. The peseta floats.
  11. 1898. War against the United States, paid for with heavy borrowing. A pound costs almost 40 pesetas, against about 25 at the franc parity.
  12. 1939. The Civil War ends. Silver coins lose legal tender. The duro has outlived the gold link by more than half a century.
  13. 1 January 1999. The peseta is locked at 166.386 to the euro. After 28 February 2002 it is no longer legal tender.

Close

Figuerola's duro had told its owner exactly what it held: 25 grams, 900 fine, 40 to the kilogram. None of the paper pesetas that came after it could say the same.

A shorter version of this note first appeared as an X Article.