French Gold 20 Francs Napoléon III (Empereur) Coin
Gold Coin (Numismatic/Bullion) · Yellow Gold (Copper Alloy for durability, giving it a slightly warmer reddish-yellow tone)
Purity: 22K / 90.0% Fineness (.900 gold). This alloy provides durability compared to 24K gold.

Type
Gold Coin (Numismatic/Bullion)
Purity
22K / 90.0% Fineness (.900 gold). This alloy provides durability compared to 24K gold.
Gold Type
Yellow Gold (Copper Alloy for durability, giving it a slightly warmer reddish-yellow tone)
Weight
6.45 grams (Gross weight); Contains 5.806 grams (0.1867 troy oz) of fine gold.
Description
A historic French 20 Francs gold coin featuring the profile of Emperor Napoléon III. These coins were the workhorses of the Latin Monetary Union and remain a staple for European gold investors today.
Key Features
Profile of Napoléon III, circular legend in French, laurel crown (if late era), and the 'Empire Français' reverse with year plate.
Color & Finish
Deep yellow with a reddish-gold patina; dull matte surface due to heavy circulation and storage condition.
Hallmarks & Stamps
French Mint Marks (A for Paris or mint-specific privy marks); Obverse: 'NAPOLÉON III EMPEREUR'; Reverse: 'EMPIRE FRANÇAIS' and denomination.
Dimensions Estimate
Diameter of 21 mm; Thickness of 1.3 mm.
Gemstones & Inlays
None. Standard minted currency design.
Clasp & Closure
Reeded edge for security and to prevent 'clipping' of the precious metal.
Chain & Links
Not applicable; single struck coin with reeded edges.
Craftsmanship Details
Die-struck production; consistent thickness and centered strike characteristic of mid-19th century industrial minting.
Authentication Indicators
Weight (approx. 6.45g) is the primary indicator; specific gravity; distinct French mint style and font. *Note: Heavily toned coins should be checked for plating.*
Origin & Maker
France; various mints including Paris (A) or Strasbourg (BB).
Era & Period
Second French Empire (1852–1870), specifically the 'Laureated Head' or 'Bare Head' subtype.
Age Estimate
Produced between 1852 and 1870 (19th Century).
Cultural Significance
Represents the height of French imperial power and the attempted standardization of European currency under the Latin Monetary Union.
Condition Notes
Fair to Good. Visible surface wear, significant toning/dirt, and lack of luster suggest a 'Circulated' grade (Fine to Very Fine).
Value Estimate
Primarily valued for its gold content (melt value) plus a small numismatic premium (3-8%) depending on the spot price of gold.
Care & Maintenance
Do not clean with abrasives. Store in an acid-free PVC-free flip or capsule to prevent further oxidation/toning.
Similar Items
Swiss 20 Francs Vreneli, Lucky Angel 20 Francs, Belgian 20 Francs Leopold II.
Interesting Facts
The 20 Francs gold coin was so standard that it led to the 'Vreneli' and other European gold coins following the exact same weight and purity standards.