Sorting your écus in four questions
Which design? A group of three figures means Hercules; a man's profile means the Empire, a king or Napoleon III; a woman's head crowned with wheat ears means Ceres. The title engraved around the portrait settles any doubt.
Which date? Under the Directory and early in the Consulate, the year follows the revolutionary calendar (Year 4, Year 9…). The Gregorian calendar returns under the Empire.
Which mint? The letter next to the date names the mint that struck the coin: A for Paris, K for Bordeaux, D for Lyon, BB, W, MA and others. The guide to French mints lists them.
What condition? The same date can come heavily worn or almost untouched, and that is often what matters most.
From the law of Year III to the halt of 1878
The franc was created by the law of 28 Thermidor Year III, that is 15 August 1795, which also provided for a large silver coin designed by Augustin Dupré. Eight years later, the law of 7 Germinal Year XI defined the franc as 5 g of silver at 900‰; the 5 francs coin therefore weighs 25 g, a standard that never changed.
Each government changed the picture, not the metal: Bonaparte and then the Emperor, the two Bourbon kings, Louis-Philippe, the republicans of 1848, Napoleon III, and finally the Third Republic, which brought Hercules back. In 1865, the Latin Monetary Union aligned the écus of Belgium, Switzerland and Italy on this model, making them interchangeable with the French ones.
As silver lost value against gold, the Latin Union countries stopped striking these coins: 1878 is the last date. Écus already issued kept circulating until the Great War. To set the coin in its century, see the page on the 19th century.
Copies, period fakes and small symbols
Privy marks. On either side of the date, two tiny symbols identify the mint director and the chief engraver. They tell apart coins of the same year and letter: in Paris in 1871, the bee marks ordinary écus and the trident those of the Commune, when Zéphirin Camélinat ran the mint.
Re-cut dates. Directory dies stayed in use for several years, so one numeral can be seen struck over another, for instance Year 6 over 5 or Year 8 over 5. Catalogues list them as separate varieties.
Fakes. Imitations in tin or base alloy circulated as early as the 19th century, and modern reproductions add to them. Scales (25 g), calipers (37 mm) and a look at the edge weed out most of them; a cast coin also gives itself away through a grainy surface and soft lettering. The guide spotting a fake coin explains these checks.
Wear: where to look
Some stayed in use for over a century, so these écus are mostly found in Fine or Very Fine; without wear they become uncommon, all the more so before 1848.
- Hercules: the hero's chest and knee, his hand on Liberty's shoulder, the drapery of the two women.
- Portraits: the hair near the ear, the cheekbone, the laurel leaves; on Louis-Philippe, the curls at the nape.
- Reverse: the relief of the foliage around the value, or the engraving of the arms and their crown.
Their weight also explains the frequent knocks on the rim and in the field. Do not rub a tarnished écu: cleaning leaves a flat white look that collectors dislike. More in the grading guide and in our advice before any cleaning.