| Descrição do anverso |
Multicolored note in predominant tones of yellow and blue, with a central vignette of a panoramic view of the city of Luxembourg. Inscriptions in French appear along the borders, including the issuing bank name, denomination, and an anti-counterfeiting warning. The design is framed with decorative guilloche patterns typical of the period. |
| Legenda do anverso |
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| Descrição do reverso |
Multicolored reverse in predominant tones of yellow and blue, with a vignette of Vianden Castle positioned at right. The grand ducal coat of arms appears in the background at center, rendered as an underprint element. Decorative guilloche borders frame the composition, consistent with the obverse style. |
| Legenda do reverso |
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| Assinatura(s) |
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| Descrição da proteção |
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| Variantes |
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The Banque Internationale à Luxembourg was a private commercial bank, not a central bank — which makes this series unusual by European standards of the period. Luxembourg had no central bank until 1998, and private institutions were authorized to issue notes to fill that gap. The BIL, founded in 1856, was the dominant force in this arrangement for decades.
Pick numbers 9 through 11 reflect signature varieties across the seventeen-year span rather than fundamental design changes — a long run for a private-issue series operating through the Depression years and right up to the German occupation in May 1940, which effectively ended circulation.