Pièce d'un demi-dollar américain Kennedy

Pièce d'un demi-dollar américain Kennedy
Pays Drapeau des États-Unis États-Unis
Valeur 0,50 USD
Masse 90 % argent: 12,50 g
Or 2 014 : 23,33 g
Diamètre 30,6 mm
Épaisseur 2,15 mm
Composition 1964 et proof :
90 % argent,10 % cuivre
Circulantes depuis 1971 : Cuivre et Nickel
2014: 99.9 % Or
Année d'émission 1964
Numéro catalogue
Avers
Avers
Gravure Profil gauche de John F. Kennedy
Graveur Gilroy Roberts
Année de la gravure 1963
Revers
Revers
Gravure Sceau présidentiel modifié
Graveur Gilroy Roberts
Année de la gravure 1963

Le demi-dollar Kennedy est une pièce de monnaie commémorative, d'une valeur de cinquante cents américains, émise à partir de 1964 par la Monnaie des États-Unis. Créée en hommage au président américain John F. Kennedy assassiné l'année précédente, son émission est approuvée par le Congrès des États-Unis un mois seulement après son assassinat. Cette pièce de monnaie reprenant les travaux existants des graveurs Gilroy Roberts et Frank Gasparro, les matrices nécessaires à sa frappe ont rapidement pu être réalisées et la pièce est émise dès .

La version de la pièce émise en 1964 est composée à 90 % d'argent. À partir de 1965, la proportion d'argent est réduite pour être totalement éliminée de sa composition à partir de 1970. En 1975 et 1976, une série destinée à commémorer le bicentenaire des Etats-Unis a été émise.

En 2014, une série a été émise pour commémorer le cinquantenaire de la pièce, dont une pièce en or de 0,75 ozt.

Notes et références

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