The 1921 Standing Liberty Quarter is a popular key date in the series and possibly the best Philadelphia date of all the Type 2s. Collectible in all grades with a gradual increase in value from circulated to uncirculated where it becomes truly scarce. Very scarce as a gem in MS65 and MS66, then it takes a jump into MS67 in which that grade or finer is considered rare.
| coinage-type | Standing Liberty quarter |
| desg | MS |
| designer | Herman A. MacNeil |
| diameter | 24.3 |
| edge | Reeded |
| fineness | 0.9 |
| material | 90% silver; 10% copper |
| mintage | 1,916,000 |
| ngc-id | 243H |
| obverse-description | MacNeil's Liberty stands with one hand holding an olive branch, the other bearing a shield. A ribbon connects the branch to the shield. The world LIBERTY appears across the top periphery and the date is centered at the bottom. 13 stars appear to the side of Liberty. Mint mark, if any, is positioned above the date to the left of Liberty. |
| pcgs-link | 5740 |
| pcgs-number | 5740 |
| reverse-description | An eagle in full flight, facing right, with UNITED STATES OF AMERICA above the great raptor. Stars flank the left and right peripheries with the words QUARTER DOLLAR at the bottom. |
| weight-grams | 6.25 |
| weight-ounces | 0.1808 |
| year-display | 1917-1930 |