The 1921 Morgan dollars were struck 17 years after the previous rolled off production lines in 1904, a time when demand for Morgan dollars began shrinking and available reserves of silver bullion became scarce. The 1921 Morgan dollars came about as a result of the Pittman Act of 1918, under which more than 270 million Morgan dollars were melted and later struck with the 1921 date. The return of the Morgan dollar in 1921 was a one-year affair, as the new Peace dollar was to be struck beginning late in the year. On the whole, 1921 Morgan dollars are quite common through the Gem levels, while PLs and DMPLs are much scarcer but available for a price.
| coinage-type | Morgan silver dollar |
| desg | MS |
| designer | George T. Morgan |
| diameter | 38.1 |
| edge | Reeded |
| fineness | 0.9 |
| material | 90% silver; 10% copper |
| 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. |
| 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. |
| variety | Type of 1921 |
| weight-grams | 26.73 |
| weight-ounces | 0.943 |
| year-display | 1878-1921 |