20 francs 1964

Common. The 1964 20 francs note (Pick 138) was part of a standard currency series issued in significant quantities by the Belgian Treasury. No special circumstances regarding restricted print runs, recalls, or short-lived issuance apply to this denomination and year. The note remained in circulation until Belgian franc currency was withdrawn in 2002, ensuring widespread availability in the collector market.

Issued in 1964 by the Belgian Treasury during King Baudouin I's reign, this banknote reflects post-war Belgium's embrace of modernism and scientific progress. The Atomium depicted on the reverse—the symbol of Expo 58 held in Brussels—represents Belgium's position as a forward-thinking European nation during the height of the Cold War atomic age, while the bilingual French/Dutch inscriptions underscore Belgium's linguistic and cultural duality.

The obverse features a formal portrait of King Baudouin I in three-quarter profile, wearing eyeglasses and formal business attire (suit and tie), positioned on the left side of the note. The Belgian coat of arms with crown and lion appears prominently. The reverse showcases a detailed scientific illustration of the Atomium—Brussels's famous structural monument featuring an atomic lattice model with interconnected spheres and rods. Both sides employ a sophisticated cream and beige base with green and brown accents, complemented by elaborate ornamental circular medallions and decorative border patterns. The design is thoroughly executed in fine-line engraving with complex guilloche work throughout, creating a sophisticated security framework.

FRONT (Obverse): 'ROYAUME DE BELGIQUE' (Kingdom of Belgium) / 'TRESORERIE' (Treasury) / 'VINGT FRANCS' (Twenty francs) / '15.06.64' (Issue date: 15 June 1964) / 'LE DIRECTEUR GENERAL DE LA TRESORERIE' (The General Director of the Treasury) / 'UNION FAIT LA FORCE' (Unity makes strength—Belgian national motto) / Serial number: '3 S 9241420' / Denomination: '20'. BACK (Reverse): 'KONINKRIJK BELGIE' (Kingdom of Belgium) / 'THESAURIE' (Treasury) / 'TWINTIG FRANK' (Twenty francs) / 'DE DIRECTEUR-GENERAAL DER THESAURIE' (The General Director of the Treasury) / 'DE NAAMAKER WORDT DOOR DE WET GESTRAFT' (The counterfeiter is punished by law) / Denomination: '20'.

Intaglio/engraving (line engraving), executed with photogravure techniques typical of 1960s Belgian banknote production. The note exhibits fine guilloche patterns, complex geometric line work, and intricate security engraving throughout. The Belgian 20 francs notes of this period were produced by the Banque Nationale de Belgique printing facilities, employing multi-color intaglio printing on specialized security paper.

This specimen carries the serial number prefix '3 S', indicating a specific printing batch from the 1964 issuance. The date '15.06.64' is standard for this series. Minor varieties exist based on signature variants of the General Director of the Treasury, and subtle printing differences may appear across different batches, but no major cataloged varieties are noted for Pick 138(3) beyond routine serial number and signature variations.