1977D Kennedy Half Dollar Clad Composition
.Mintage: 31,449,106
.Minted at: Denver
.Designer - Engraver: Gilroy Roberts
.Metal Composition: 91.67% Copper - 8.33% Nickel (Cupronickel)
.Diameter: 30.6 mm
.Mass / Weight: 11.34 grams
.Thickness: 2.15 mm
.Variety/Rarity: Denver/Type3 (Copper-Nickel Clad)