Only 3 examples are known of the 1804 draped bust eagle, struck in proof format. Researcher John Dannreuther calls the 1804 Plain 4 $10 gold piece "one of the most spectacular gold rarities in the entire American series."
| coinage-type | Draped bust gold eagle |
| desg | PR |
| designer | James B. Longacre |
| diameter | 33 |
| edge | Reeded |
| fineness | 0.9167 |
| material | 91.67% gold; 8.33% silver & copper |
| mintage | 4 known |
| ngc-id | BFYV |
| obverse-description | Liberty with cap, facing right, surrounded by 13 stars and the word LIBERTY around the periphery. The date is centered at the bottom. |
| pcgs-link | 8570 |
| pcgs-number | 8570 |
| prefix | Rare |
| reverse-description | A small eagle is centered holding a wreath in its beak, over its head, and an olive branch in its talons. UNITED STATES OF AMERICA is written around the periphery. |
| variety | Plain 4 |
| variety-2 | BD-2 |
| weight-grams | 17.5 |
| weight-ounces | 0.5 |
| year-display | 1804 |