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2003 (S) Proof Illinois Silver State Quarter

Strike Type
2003 (S) Proof Illinois Silver State Quarter

Coin Details

Year
2003
Denomination
Quarter
Mint Mark
S
Strike Type
Proof
Series
State Quarters 1999-2008
Designer
John Flanagan/Donna Weaver
Mintage
1,125,755
Composition
90% Silver, 10% Copper
Weight
6.3g
Diameter
24.3mm
Edge
Reeded

Value Estimates

$0.25 - $25

Values as of May 2026 — estimates reflect typical grades (G-4 through MS-63). Coins in lower or exceptional grades may fall outside this range.

Auction Record

$1,006 PR70 12-09-2003 Heritage Auctions

Description

The 2003 (S) Proof Illinois Silver State Quarter is a proof quarter struck at the San Francisco Mint, part of the State Quarters 1999-2008 series. The U.S. Mint produced 1.1 million examples, making this the lowest mintage among 20 mint variants, representing only less than 1% of total production. The obverse features George Washington facing left, based on a 1786 bust by Jean-Antoine Houdon and the reverse displays unique designs representing each of the 50 U.S. states, released in the order of statehood ratification. Illinois, Alabama, Maine, Missouri, and Arkansas. Some state designs attracted controversy over their selections. As a proof issue, this coin was struck multiple times on specially prepared polished planchets using polished dies, producing mirror-like fields and frosted design elements prized by collectors. Struck at the San Francisco Mint, established during the California Gold Rush and now primarily producing proof and collector coins. Estimated market value ranges from $0 to $25 depending on grade and condition. Struck in 90% silver, 10% copper, weighing 6.3 grams, 24.3 mm in diameter, with a reeded edge. Cataloged as PCGS #913038.

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