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1 Syli

Issuer Banque Centrale de la République de Guinée
Year 1981
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Value 1 Syli
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Reverse description Olive and yellow-green on white. The design is entirely geometric, composed of fine guilloche lacework. A large central rectangular panel, framed by concentric ornamental borders, carries the denomination "UN SYLI" in bold serif lettering over a rosette underprint. Flanking the central panel on each side is a diamond-shaped guilloche medallion enclosing the numeral "1", set against elaborate scalloped surround patterns.
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Protection description Repeating star pattern
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Comments

The syli replaced the Guinean franc in 1971 as part of Sékou Touré's broader effort to break from the CFA franc zone and French monetary influence — Guinea had been excluded from French colonial development funds since its 1958 independence vote, and the currency system was one of several domains where the government pursued aggressive self-determination. The syli itself was subdivided into 100 cauris, a deliberate nod to the cowrie shells historically used as currency across West Africa.

The 1 syli was the smallest denomination in this 1981 series. A print run exceeding twelve million is substantial for a note this size, suggesting it saw genuine everyday use rather than being a token low-denomination issue.