1928 is the only year in which both large and small mintmark sizes can be found.
| coinage-type | Standing Liberty quarter |
| desg | MS |
| designer | Herman A. MacNeil |
| diameter | 24.3 |
| edge | Reeded |
| fineness | 0.9 |
| material | 90% silver; 10% copper |
| mint-mark | S |
| mintage | 2,644,000 |
| ngc-id | 243Z |
| 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 | 5770 |
| pcgs-number | 5770 |
| 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 |