1966 Roosevelt Dime Clad Composition
.Mintage: 1,382,734,540
.Minted at: Philadelphia (No Mint Mark)
.Designer/Engraver: John R Sinnock
.Metal Composition: 91.67% Copper - 8.33% Nickel
.Finesse: N/A
.Diameter: 17.9 mm
.Mass/Weight: 2.27 grams
.Thickness: 1.35mm
.Variety/Rarity: Philadelphia/Type 2 (Clad)