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20 Francs - Jean Essai
| Issuer | Luxembourg |
|---|---|
| Year | 1964 |
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| Composition | Log in to see details |
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| Diameter | Log in to see details |
| Thickness | 1.5 mm |
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| Obverse description | Left-facing effigy of Grand Duke Jean of Luxembourg (1921–2019), who reigned from 1964 to 2000, rendered in high relief with fine portraiture detail. The truncation of the neck bears the engraver's signature J.N. LEFEVRE. A continuous Latin legend surrounds the portrait, identifying the subject by name and title within the field. |
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| Reverse script | Latin |
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| Additional information |
Essai strikes for Luxembourg in this period were produced by the Monnaie de Paris under contract, with pattern and trial pieces often appearing in multiple metal variants before a final composition was approved. This particular copper-nickel essai corresponds to a rejected or exploratory specification — the KM#M4a designation places it among the medal strikes rather than circulating issues, meaning it never entered production in this form. The Wictor reference, specific to Luxembourg essais, suggests a documented collector population but a very limited original striking.