ObverseImage: Wikimedia Commons · DrFO.Jr.Tn · Public domain
20 Francs Belgium
Belgium
1950–1980
Reference data compiled from public catalogs
Specifications
| Country | Belgium |
| Years Minted | 1950–1980 |
| Composition | Aluminium bronze |
| Weight | 4 g |
| Diameter | 23 mm |
| Shape | Round |
| Edge | Reeded |
Design
Obverse
Features the portrait of the reigning Belgian monarch, such as King Baudouin for most of the period.
Reverse
Displays the denomination '20 Francs' along with the Belgian lion or national arms.
History & Notable Facts
The Belgian 20 Franc coin, struck in aluminum-bronze from 1950 to 1980, was designed to endure the rigors of daily use in a post-war economy, outlasting many contemporaries with its alloy's resistance to corrosion.
That durability came from a mix of copper, aluminum, and zinc, which kept production costs low while maintaining a weight of about 8 grams. Early issues bore the profile of King Leopold III, shifting to Baudouin I after 1951; the reverse typically showed the Belgian coat of arms. Minting occurred at the Brussels facility, with variations in edge lettering depending on the year.
Records for exact annual production are spotty, lost in various archival mishaps over the decades. If you're handling one, note the subtle die variations that can trip up the unwary collector.
Plenty of these turn up in bulk lots, a testament to their sheer numbers in circulation.
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