Composition – copper and nickel (91.67% and 8.33%, respectively)
Weight – 2.26 grams (0.07 ounces)
Diameter – 17.91 millimeters (0.7 inches)
Thickness – 1.35 millimeters (0.05 inches)

A dime from 1966 belongs to the category of Roosevelt dimes. It was produced in three mints – Philadelphia, Denver, and San Francisco. What is interesting about this coin is that it doesn’t contain a mint mark, so you can never be sure where your 1966 dime comes from.