Coin Highlights
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Date/Mint: 2005-S, San Francisco.
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Denomination: Quarter Dollar.
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Composition: 90% silver, 10% copper.
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Strike: Proof.
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Weight: 6.30 grams.
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Diameter: 24.30 mm.
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Edge: Reeded.
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Mintage: 1,678,649.
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Obverse: George Washington by John Flanagan.
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Reverse: Buffalo and sunflower motif by Norman Nemeth.
Historical Significance
The Kansas quarter was the 34th coin released in the 50 State Quarters Program and the fourth released in 2005. It commemorates Kansas as the 34th state admitted to the Union, on January 29, 1861, and its reverse was designed to reflect the state’s prairie heritage and agricultural identity.
Collectibility
This silver proof issue was struck as part of the 2005 United States Mint 50 State Quarters Silver Proof Set, which included the five 2005 state quarters in 90% silver with the “S” mint mark. Its lower mintage than the clad proof version, silver composition, and strong visual appeal make it a popular choice for modern proof set collectors and State Quarter specialists.



