1978 Kennedy Half Dollar Clad Composition
.Mintage: 14,350,000
.Minted at: Philadelphia (No Mint Mark)
.Designer/Engraver: Gilroy Roberts
.Metal Composition: 91.67% Copper - 8.33% Nickel
.Finesse: N/A
.Diameter: 30.6 mm
.Mass/Weight: 11.34 grams
.Thickness: 2.15 mm
.Variety/Rarity: Philadelphia/Type 3, Copper-Nickel Clad