This set features all five 2005 State Quarters with
proof finishes. United States Mint proof coins feature sharp relief and a
mirror-like background. Their sculpted, frosted foregrounds give them a
special cameo effect. Proof blanks are specially treated, polished, and
cleaned to ensure high-quality strikes. The blanks are then fed into
presses fitted with specially polished dies and struck at least twice to
ensure sharp relief. The coins are then packaged in a protective lens
to showcase and maintain their exceptional finish.
| Denomination: | Quarter |
| Composition: | 8.33% Nickel, Balance Copper |
| Weight: | 5.670 grams |
| Diameter: | 0.955 inch (24.26 mm) |
| Edge: | Reeded |
| Mint and Mint Mark: | San Francisco – S |
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