Belgium Leopold II Gold 20 Francs (Latin Monetary Union Standard)
Coin (Numismatic/Bullion hybrid) · Yellow Gold (High copper-to-silver ratio typical of 19th-century European coinage to ensure durability)
Purity: 21.6K (90.0% pure gold / .900 fineness). Gold content is 5.806 grams of pure gold.
Type
Coin (Numismatic/Bullion hybrid)
Purity
21.6K (90.0% pure gold / .900 fineness). Gold content is 5.806 grams of pure gold.
Gold Type
Yellow Gold (High copper-to-silver ratio typical of 19th-century European coinage to ensure durability)
Weight
6.45 grams gross weight; 0.1867 troy oz pure gold content
Description
An iconic example of European monetary history, this Belgian 20 Francs piece features the bearded profile of King Leopold II. Designed under the standards of the Latin Monetary Union, it represents a period of unprecedented economic integration in Europe where gold coins were interchangeable across borders. The obverse depicts the King facing left, captured in high relief with fine detail in the beard and hairstyle, surrounded by a beaded border.
Key Features
Leopold II bare-headed portrait, 'LEOP WIENER' signature, .900 gold fineness, and LMU standard weight of 6.45g.
Color & Finish
Tarnished warm yellow gold with significant organic patina and surface darkening consistent with iron or copper oxidation from long-term storage.
Hallmarks & Stamps
Obverse: 'LEOPOLD II ROI DES BELGES' with engraver 'LEOP. WIENER' below the truncation of the neck. No mint mark (Brussels Mint).
Dimensions Estimate
21.5 mm diameter, 1.3 mm thickness (standard specifications)
Gemstones & Inlays
None; relief-struck numismatic design
Clasp & Closure
Not applicable; circular reeded edge for security against clipping
Chain & Links
Not applicable; reeded/granular edge detail
Craftsmanship Details
Precision die-struck on a prepared planchet. The master hubs were hand-engraved, evidenced by the sharpness of the King's beard and the uniform lettering.
Authentication Indicators
Correct font serif style for 'WIENER' signature, beaded border count, and characteristic 19th-century Belgian profile. Note: Image appears grey/dull, requiring density verification to ensure it is not a silver-plated contemporary counterfeit.
Origin & Maker
Belgium; Royal Belgian Mint (Brussel/Bruxelles); Engraved by Leopold Wiener
Era & Period
Late Victorian / Latin Monetary Union (LMU) Era; issued between 1867–1882
Age Estimate
Circa 1867–1882 (Late 19th Century)
Cultural Significance
Represents the height of the Belgian colonial era and the standardization of European trade through gold-backed currency.
Condition Notes
Good to Very Good (VG). High points of hair and beard show heavy wear. Significant surface debris and dark toning/patina indicate it has not been cleaned recently (which preserves numismatic value).
Value Estimate
Primarily driven by gold melt value (~$450-$500 USD based on spot prices) plus a 5-10% numismatic premium depending on the specific date.
Care & Maintenance
Do not clean or polish; surface patina is preferred by numismatists. Store in a PVC-free archival coin flip or airtight capsule.
Similar Items
French 20 Francs 'Napoleon III' or 'Rooster', Swiss 20 Francs 'Vreneli', and Italian 20 Lire 'Umberto I'.
Interesting Facts
The Latin Monetary Union, established in 1865, was a precursor to the Euro, allowing French, Belgian, Italian, and Swiss gold coins to circulate as equal legal tender.