Once counted among the rarities of the Morgan dollar series, 1904-O dollars were released in roll and bag quantities during the 1960s. Today, these coins are common through MS65 and readily available in MS66, though rare in MS67. PLs are plentiful and there is also an adequate supply of DMPLs to satisfy collector demand. These would be among the last Morgan dollars until 1921.
| coinage-type | Morgan silver dollar |
| desg | MS |
| designer | George T. Morgan |
| diameter | 38.1 |
| edge | Reeded |
| fineness | 0.9 |
| material | 90% silver; 10% copper |
| mint-mark | O |
| mintage | 3,720,000 |
| ngc-id | 256V |
| obverse-description | Portrait of Liberty centered. On the left are found 7 stars with the words E*PLURIBUS*UNUM followed by 6 stars on the right. The date is positioned at the bottom. |
| pcgs-link | 7292 |
| pcgs-number | 7292 |
| reverse-description | The heraldic eagle is centered holding a bunch of arrows and branch surrounded by and olive leaves. The words UNITED STATES OF AMERICA * ONE DOLLAR frame the periphery. Mint mark, if any, appears above the letters DO of DOLLAR. |
| weight-grams | 26.73 |
| weight-ounces | 0.943 |
| year-display | 1878-1921 |