Where is the mint mark on a us quarter?

• Washington quarters dated from 1932 to 1964 is on the back side above the "R" in the Word Quarter.

No mint mark = Philadelphia

S = San Francisco

D = Denver

• 1965-1967 coins have no mint marks regardless of where they were struck.

• 1968-1979 coins have a D to the right of Washington's wig if from Denver, and no mint mark if from Philadelphia

• 1980 and later coins have a D or a P in the same location.

• 1968 and later proof coins (sold in special sets to collectors) have an S to the right of Washington's wig.

• Standing Liberty quarters have the mint mark above and to the left of the date. The "M" on the opposite side is the monogram of the designer H. A. MacNeil.

No mint mark = Philadelphia

S = San Francisco

D = Denver