How to Identify the French 5 Francs Silver (Ecu / Hercules)

What Is the French 5 Francs Silver Coin

This large silver denomination was struck in France from the Napoleonic era through the mid-19th century, with occasional later revivals. It is nicknamed "Ecu" for its size, while the Second Republic's 1848-1849 type is nicknamed "Hercules" for its allegorical design. As France's highest-value regularly circulating silver coin for much of the 19th century, it played a central role in everyday commerce and large transactions alike.

Obverse Design and Inscriptions

The design varies by era: Napoleon I issues show his laureate or bare head with "NAPOLEON EMPEREUR"; Louis-Philippe issues show his portrait with "LOUIS PHILIPPE I ROI DES FRANCAIS"; the Second Republic's Hercules type shows an allegorical group of Liberty, Equality, and Fraternity as standing figures with the legend "REPUBLIQUE FRANCAISE."

Reverse Design and Inscriptions

The reverse typically shows a wreathed denomination "5 FRANCS" with the date, and on republican issues the national motto "LIBERTE EGALITE FRATERNITE."

Size, Weight, Metal, and Edge

The coin was struck in .900 fine silver, approximately 37mm in diameter and 25 grams. The edge is lettered, sometimes carrying a motto such as "DIEU PROTEGE LA FRANCE" (God protect France) on imperial-era issues.

Mint Marks and Where to Find Them

A mint letter — A for Paris being most common — plus a small mint director's privy mark appear near the base of the reverse design, close to the date. Provincial French mints used different single-letter codes, so a coin marked with a letter other than A was struck outside the capital.

Telling It Apart From Similar Coins

The specific portrait or allegorical figures on the obverse pin down the ruling era. The "Hercules" nickname applies specifically to the Second Republic design showing Hercules standing between Liberty and Equality, distinguishing it from the simple portrait-bust types used under Napoleon or the Bourbon and Orleans kings.

Judging Condition at a Glance

Check the finest details — facial features and hair on portrait types, or drapery folds on the Hercules allegorical design — for wear. Sharp, well-defined edge lettering and full luster in protected areas indicate a higher grade. Because these large silver coins circulated heavily in daily commerce, moderately worn examples are common, so a piece retaining strong central detail and a legible edge inscription stands out as better preserved.

Authenticity Red Flags

Verify weight and diameter against the standard 25 grams and 37mm. Cast counterfeits often show soft, mushy lettering, an incorrect edge inscription, or a slightly off diameter, and may lack the correct ring when dropped on a hard surface. A genuine coin should also have crisply squared-off rim reeding or lettering rather than the rounded, worn-looking edges typical of cast reproductions.