The Standing Liberty Quarter is a 25-cent coin minted in the United States from 1916 to 1930, with a notable design featuring Liberty in a classical robe holding a shield. The 1928 issue is particularly significant as it was struck in San Francisco, indicated by the "S" mint mark, and is recognized for its lower mintage compared to other years. This coin is highly sought after by collectors, especially in higher grades, due to its historical value and aesthetic appeal.

Item Denomination Series Year Mint
1928-S 25c 25c Standing Liberty Quarters 1928 San Francisco