other
| Country | United States | Denomination | 25 cents (quarter dollar) |
|---|---|---|---|
| Year | 1964 | Mintmark | No mintmark (struck at Philadelphia) |
| Metal | silver-copper alloy | Purity | |
| Weight g | 6.25 | Silver oz | |
| Gold oz | Premium | ||
| Notes | Obverse features the portrait of George Washington by John Flanagan; the reverse features an American bald eagle with outspread wings perched on a bundle of arrows. | ||