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| Country | United States | Denomination | 1 dollar |
|---|---|---|---|
| Year | 1972 | Mintmark | Philadelphia (no mintmark) |
| Metal | copper-nickel | Purity | 0.0 |
| Weight g | 22.68 | Silver oz | |
| Gold oz | Premium | ||
| Notes | Type 1 reverse (common). Earth detail beneath eagle is flat and indistinct. Not the rare Type 2 variety. | ||