Eisenhower Dollars: 1971-1978
- Designer: Frank Gasparro
- Diameter: 1.5 inches (38.1 mm); reeded edge
- Mints: Philadelphia, Denver, San Francisco
- Mint marks: D or S on obverse above the date
Variety 1 & 2
Composition - Variety 1: 3-layer Copper-Nickel Clad; 1971-1974, 1977, 1978
- Outer layers of 75% copper and 25% nickel. Each outer layer is 1/6 of the total thickness of the coin.
- Inner core of 100% copper, 2/3 the total thickness of the coin.
- Weight: 22.68 grams
Composition - Variety 2: 3-layer Silver/Cupro clad; 1971 through 1974
Outer layers of 80% silver, 20% copper
- Inner core of 21% silver, 79% copper
- Weight: 24.59 grams
Variety 3: Bicentennial Design - 1976 only
This design was issued for only one year to commemorate the US bicentennial of 1776-1996.
- Designer: Frank Gasparro (Obverse) and Dennis R. Williams (Reverse)
- Composition: 2 different compositions and weights:
- 3-layer Cupro/Nickel clad: composition and weight are the same as the Variety 1 coins
- 3-layer Silver/Cupro clad: composition and weight are the same as the Variety 2 coins
- The scale of the chart is limited to 34,000,000 coins to allow the lowest quantity issues to be displayed, while accurately charting most other issues. The Eisenhower Dollar production in Philadelphia and Denver exceeded the 34 million mark seven times, but actual mintages above that total would seem to be immaterial. Data for those seven issues is truncated to facilitate better chart detail of lower mintage issues.
- 1973-P & -D Eisenhower Dollars were issued only in 1,767,691 uncirculated mint sets. Actual coin production was more than that, but all coins not used in the sets were destroyed by the mint.