Kennedy Half Dollars
90% Silver Composition (1964)
Designer – Engraver: Gilroy Roberts
Metal Composition: 90% Silver – 10% Copper
Diameter: 30.6 mm
Mass / Weight: 12.5 grams
40% Silver Composition (1965-1970)
Designer – Engraver: Gilroy Roberts
Metal Composition: 40% Silver – 60% Copper
Diameter: 30.6 mm
Mass / Weight: 11.5 grams
Clad Composition (1971-Present)
Designer – Engraver: Gilroy Roberts
Metal Composition: 91.67% Copper – 8.33% Nickel
Diameter: 30.6 mm
Mass / Weight: 11.34 grams
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