1956 Silver Proof Quarter NGC PF66 $730

Updated August 20, 2026

This auction ended on August 27, 2026. See upcoming auctions from Iowa Surplus & Estate Auctions or current coins & currency auctions.
Lot number498
Estimate25.00 - 53.00 USD
CategoryCoins & Currency
AuctionAUG 27 26 GOLD SILVER BULLION SLABBED KNIVES CARDS
DateAugust 27, 2026 at 6:00 PM CDT
Auction houseIowa Surplus & Estate Auctions
LocationCoralville, Iowa

1956 Silver Proof Quarter NGC PF66 $730 This exceptional 1956 Washington Quarter is a stunning example of mid-century numismatic craftsmanship, certified as Proof 66 (PF66) by the Numismatic Guaranty Company (NGC). Struck at the Philadelphia Mint with a composition of 90% silver and 10% copper, this coin boasts the brilliant, mirror-like surfaces characteristic of high-grade proof strikes from this era. The obverse features John Flanagan's iconic portrait of George Washington, while the reverse displays a powerful spread-winged eagle, both appearing with sharp, crisp details and minimal surface distractions. This specific specimen is housed in a secure NGC holder and includes a Heritage Auctions provenance label, adding a layer of historical pedigree and market confidence to the piece. As part of a limited proof set production year, this PF66 quarter represents a premium choice for collectors of silver coinage who value both preservation and the visual allure of a near-perfect strike. Condition: The coin is in Proof 66 condition as certified by NGC, indicating a high-grade specimen with minimal hairline scratches or minor imperfections visible only under magnification, and it retains a strong aesthetic appeal with original luster. It was struck at the Philadelphia Mint, which was the sole facility for proof coinage during this era. The metal content consists of 90% silver and 10% copper, containing approximately 0.1808 troy ounces of pure silver. Historically, the 1956 Washington Quarter belongs to the mid-century era of the series, a time when proof sets were becoming increasingly popular with the general public. The collector value for a PF66 specimen typically ranges between $25 and $40, making the $730 asking price significantly higher than current market retail and historical auction records for this specific grade. The strike type is a Proof, characterized by sharp details and mirror-like fields achieved through multiple high-pressure strikes using specially polished dies and planchets. The grading is officially certified by NGC (Numismatic Guaranty Company), a leading third-party authentication service. 1956 Washington Quarter, PF66, proof coin, US Mint, silver coin, numismatics, coin collecting, graded coin, slabbed coin, Heritage Auctions, United States of America, quarter dollar, vintage currency, coin holder, proof set. 1956 quarter, Washington quarter, PF66, proof coin, silver quarter, US coinage, numismatics, rare coins, graded coins, collectible currency Bidder is fully responsible for: - Determining what an item is worth to you - Evaluating the condition and authenticity of items - Making informed bidding decisions The auction house does explicitly not: - Provide appraisals - Grade items - Authenticate items - Test items - Third-Party Grading is that of the 3rd party and not done by us -Gold, Silver, Platinum, Copper, Gold-Gilded, Gold layered or Silver Plated, Electic Plating, The Metal Content or purity is not guaranteed,

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