2006 (S) Proof South Dakota State Quarter
Strike Type
Coin Details
Value Estimates
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
$104 PR70 01-08-2007 Heritage Auctions
Description
The 2006 (S) Proof South Dakota 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 2.9 million examples, making this ranked 16th of 30 mint variants by mintage, with less than 1% of 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. The reverse features a Chinese ring-necked pheasant in flight above the Mount Rushmore National Memorial, bordered by heads of wheat. The design pairs South Dakota's most famous landmark with the state bird. Nevada, Nebraska, Colorado, North Dakota, and South Dakota. 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 75% copper, 25% nickel, weighing 5.67 grams, 24.3 mm in diameter, with a reeded edge. Cataloged as PCGS #39136.
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