The 1881-O Morgan dollar is extremely common in circulated grades and remains widely available through about MS65, though above that point becomes scarce, as do most O-mint Morgans; pieces grading above MS66 are true rarities. PLs and DMPLs appear with some frequency in the lower MS levels but are downright rare in MS65 or higher.
| 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 | 5,708,000 |
| ngc-id | 2548 |
| 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 | 7128 |
| pcgs-number | 7128 |
| 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 |