What is the value of a 20 Francs Marianne COQ gold coin today?
20 Francs Marianne COQ price history
Intrinsic value based on the gold price
How much does a 20 Francs Marianne COQ gold coin weigh?
The 20 Francs Marianne COQ coin has a total weight of 6.4516 grams. This weight includes the coin's complete alloy.
Taking its purity of 900‰ (90.0%) into account, this coin contains exactly 5.8064 grams of pure gold.
What is the purity of a 20 Francs Marianne COQ gold coin?
The 20 Francs Marianne COQ coin has a purity of 900 thousandths, i.e. 90.0% fine gold.
This purity is characteristic of coins struck in France between 1898-1914. The rest of the alloy (10.0%) is generally composed of copper to strengthen the coin's durability.
Obverse
The obverse of the 20 francs Marianne Coq honours the quintessential French republican allegory: the bust of Marianne wearing the Phrygian cap, a masterpiece of graphic sobriety signed by the great medallist Jules-Clément Chaplain.
Republican typology and artistic signature
The profile of Marianne: A remarkably fine portrait depicting the Republic in profile, the Phrygian cap being delicately adorned with laurel leaves.
Legends and attributes: The circular inscription REPUBLIQUE FRANÇAISE frames the bust, while Chaplain's signature can be made out beneath the neck truncation.
Typological distinction: Not to be confused with the Cérès or Napoléon III types, or later issues (such as the Marianne Lagriffoul), this coin inaugurates the most emblematic type of the Third Republic.
Reverse
The reverse of the 20 francs Marianne Coq features one of the most stirring patriotic motifs in French numismatics: the proud Gallic rooster standing tall on its spurs.
The Gallic rooster, values and mint marks
The central motif: A rooster with a stately bearing, a traditional symbol of France and republican vigilance, surrounded by the denomination 20 FRANCS and the explicit mention OR.
Legends and date: The year of issue appears in the exergue, accompanied by the privy marks and the initials or symbols of the producing mint (such as the letter A for Paris).
Collector varieties: Collectors pay particular attention to the presence of small dots or distinctive stars around the inscriptions, while the pure investor will focus primarily on the purity and overall condition of the metal.
Versions and mintage
20 Francs Marianne coq, Marianne, Légende Dieu protège la France
20 Francs Marianne coq, Marianne, Légende Liberté, Égalité, Fraternité
History of the 20 francs Marianne Coq gold coin
The last great representative of the French monetary tradition before the First World War, the 20 francs Marianne Coq embodies the direct legacy of the bimetallic system unified by the Latin Union in 1865.
Metrology, chronology and institutional framework
Technical specifications: Gross weight of 6.451 grams at a fineness of 900 thousandths (90% pure gold), giving an exact fine gold content of 5.805 grams and a diameter of 21 millimetres.
The golden age of the Third Republic: Struck from 1899 to 1914 by the Paris mint, its production was abruptly halted by the general mobilisation of 1914, shifting gold from everyday circulation towards hoarding.
Official tax status: Recognised as an investment gold coin by the French tax authorities, it benefits from VAT exemption on purchase and access to the resale regimes applicable to precious metals.
Price history of the 20 francs Marianne Coq over the past twenty years (2005 to 2026)
As a close cousin of the Napoléon and a member of the Latin Union, the Marianne Coq faithfully tracks the fluctuations of the international gold spot price, while benefiting from a remarkably stable market premium.
Market dynamics and premium management
Long-term appreciation: Carried by the strong revaluation of the yellow metal over two decades (rising from ~$400 in 2005 to major all-time highs beyond $2,000 and $3,000 in the 2020s), the coin's patrimonial value has increased significantly.
Moderate premium on common dates: Generally ranging between 3% and 8% for the most common years, it offers an excellent financial efficiency trade-off.
The numismatisation trap: Rare dates (such as 1904 or 1905) carry speculative premiums reserved for collectors, which the patrimonial investor should take care to avoid so as not to inflate their cost price.
Why invest in the 20 francs Marianne Coq?
The Marianne Coq represents one of the safe-haven assets most favoured by French savers, combining immediate liquidity, cultural attachment and ideal granularity.
Key strategic advantages and points of vigilance
Absolute national and European liquidity: Immediately recognised, tested and bought back without delay by all banking networks and professional precious metals dealers.
Accessible fractioning: With its 5.8 g of fine gold, it allows physical gold to be accumulated flexibly, without committing the capital required to purchase a bar or an ounce.
Condition criteria and taxation: Favour TB to TTB grades for investment purposes without paying an excessive aesthetic premium; upon disposal, freely choose between the flat-rate tax (11.5%) or the actual capital gains regime (full exemption after 22 years of ownership upon presentation of invoices).
Frequently asked questions
Why is the Marianne Coq the most sought-after French gold coin?
It is the republican symbol par excellence and the very last 20 Francs gold coin to have circulated in France.
Its design, created by the sculptor Jules-Clément Chaplain, is considered one of the most successful in French numismatics.
Its very high recognition among the general French public makes it the most traded coin and the easiest to resell on the national market.
What are the official restrike coins known as "Pinay" and how can you recognise them?
In the 1950s, to rebuild the state's gold reserves and stabilise the market, the French government reused the original dies to officially restrike more than 37 million coins dated from 1907 to 1914.
These coins never circulated and are preserved in impeccable mint condition (original mint lustre), which guarantees investors coins with no wear whatsoever.
Why do two different engravings exist on the edge of the 20 Francs Marianne Coq?
Coins struck between 1899 and 1906 bear the religious inscription "Dieu protège la France" on the edge.
From 1907 onwards, following the law on the separation of Church and State of 1905, the engraving was modified to adopt the secular motto "Liberté Égalité Fraternité".
Pre-1907 examples (known as "Dieu protège la France") are rarer and often command a slightly higher premium.
What is the difference in patrimonial interest between the 20 Francs Marianne and the 20 Francs Napoléon III?
In terms of pure gold weight and taxation, they are strictly equivalent. However, the Marianne Coq coins are often chosen by investors looking for coins in better condition (particularly thanks to the Pinay restrikes).
The Napoléon III, being older, more frequently shows signs of circulation, but appeals more to buyers seeking a historical dimension from the 19th century.
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