French 20 Francs Gold Coin - Napoleon III (Empire Français)
Coin (Bullion and Numismatic) · Yellow Gold with a traditional warm, slightly reddish tint due to the copper alloy content characteristic of 19th-century French coinage.
Purity: 22K (.900 Fine Gold), containing 90% gold and 10% copper alloy for durability.

Type
Coin (Bullion and Numismatic)
Purity
22K (.900 Fine Gold), containing 90% gold and 10% copper alloy for durability.
Gold Type
Yellow Gold with a traditional warm, slightly reddish tint due to the copper alloy content characteristic of 19th-century French coinage.
Weight
6.45 grams (Total Weight); contains 0.1867 troy oz of pure gold.
Description
A classic of European numismatics, the French 20 Francs featuring the Imperial Arms of Napoleon III is a staple for gold investors. Struck during the heyday of the Latin Monetary Union, these coins represent the gold standard of 19th-century European trade. The reverse depicts the majestic eagle within the imperial mantle, topped with the crown of the Second Empire.
Key Features
Imperial 'EMPIRE FRANÇAIS' legend, '20 FR' denomination flanking the coat of arms, and the distinctive reeded edge.
Color & Finish
Deep, rich yellow with a satin-to-lustrous finish; shows various states of circulation wear and natural golden-orange toning (patina) typical of historical bullion.
Hallmarks & Stamps
Obverse features Napoleon III; Reverse shows the Imperial coat of arms, 'EMPIRE FRANÇAIS', denomination '20 FR', and the mint year. An 'A' mint mark for Paris is often visible.
Dimensions Estimate
21 mm in diameter, 1.3 mm thickness; standard specification for the LMU 20 Francs.
Gemstones & Inlays
None; the value is entirely in the precious metal content and historical numismatic appeal.
Clasp & Closure
Not applicable; coins feature reeded edges to prevent metal shaving or debasement.
Chain & Links
Not applicable; the coin edge is reeded (milled) with vertical serrations.
Craftsmanship Details
Die-struck with high-pressure machinery of the 19th century; exhibits excellent radial symmetry and intricate engraving in the heraldic details.
Authentication Indicators
Weight (6.45g) and diameter (21mm) must be exact; look for sharp reeding on the edge and the characteristic copper-gold alloy hue. Counterfeits often appear 'mushy' in the fine lines of the crest.
Origin & Maker
France; minted primarily at the Paris Mint (Monnaie de Paris).
Era & Period
Second French Empire (1852–1870), specifically the Louis-Napoleon Bonaparte era.
Age Estimate
Produced between 1852 and 1870; most visible examples in this style date to the 1860s.
Cultural Significance
These coins were the engine of the Latin Monetary Union, an early attempt at a single European currency system similar to the modern Euro.
Condition Notes
Generally Very Good (VG) to Extremely Fine (XF) in appearance; some surface bag marks and light circulation wear are present on the high points of the crest.
Value Estimate
Primarily based on gold spot price (Melt Value) plus a 3-8% numismatic premium depending on the specific year and condition.
Care & Maintenance
Avoid cleaning or polishing to preserve numismatic value; store in PVC-free flips or tubes in a dry environment.
Similar Items
Swiss 20 Francs (Vreneli), Italian 20 Lire, or Belgian 20 Francs, which share the same gold specifications.
Interesting Facts
The 20 Francs gold piece is commonly referred to in France as a 'Napoléon'. It was the predecessor to the 'Marianne Rooster' gold coins.