

1970-D Washington Quarter Struck on Roosevelt Dime Stock Mint Error ICG VF20 – Rare Wrong Planchet U.S. Error Coin
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The 1970-D Washington Quarter Struck on Roosevelt Dime Stock Mint Error is a fascinating and highly collectible U.S. Mint production anomaly that showcases one of the most dramatic wrong stock errors encountered in modern American numismatics. Certified by ICG in VF20 condition, this remarkable error coin was mistakenly struck on thinner dime stock intended for Roosevelt Dime production instead of the proper quarter planchet, creating a distinctive and historically important mint-made error highly sought after by collectors.
Wrong stock and wrong planchet errors occur when a coin is struck on metal intended for another denomination, resulting in abnormal weight, thickness, strike appearance, and overall dimensions. In this extraordinary case, a Washington Quarter was struck using Roosevelt Dime stock, producing a noticeably different appearance compared to a standard quarter. These major production errors are far scarcer than common die cracks or off-center strikes because they require a highly unusual breakdown within the U.S. Mint manufacturing process.
Struck at the Denver Mint during the early clad coinage era, this 1970-D error also represents an important transitional period in American coinage history following the removal of silver from circulating dimes and quarters during the 1960s. Mint errors from this era remain especially popular because they highlight the challenges associated with modern mass coin production during a changing metallic composition period.
Certified VF20 by ICG, the coin retains strong remaining detail while displaying the distinctive characteristics associated with this dramatic wrong stock error. Collectors of genuine circulated mint errors often appreciate moderate wear because it demonstrates the coin likely entered circulation before being discovered, adding an additional layer of historical intrigue and authenticity.
The combination of a major wrong stock error, Denver Mint origin, certified authenticity, and strong collector demand makes this piece an outstanding addition to advanced U.S. error coin collections.
Key Details
- Year: 1970
- Mint Mark: D (Denver Mint)
- Denomination: 25 Cents (Quarter Dollar)
- Series: Washington Quarter
- Error Type: Struck on Roosevelt Dime Stock
- Grade: ICG VF20
- Composition: Copper-Nickel Clad on Incorrect Dime Stock
- Certification: ICG Certified Mint Error
- Designer: John Flanagan
- Country: United States
- Era: Early Modern Clad Coinage
Why This Coin is Special
⭐ Rare Washington Quarter struck on Roosevelt Dime stock
⭐ Dramatic wrong stock / wrong planchet mint error
⭐ Certified authentic by ICG
⭐ Popular early clad-era U.S. Mint error coin
⭐ Strong collector demand for major production anomalies
⭐ Scarcer than standard strike or die errors
⭐ Denver Mint issue from the historic 1970 era
⭐ Circulated VF20 condition with strong visible detail
⭐ Excellent addition to advanced error coin collections
⭐ Fascinating example of U.S. Mint manufacturing mistakes
Collector & Investment Appeal
Wrong planchet and wrong stock errors remain among the most respected categories in U.S. error coin collecting due to their rarity and educational significance. Collectors value these coins because they clearly demonstrate how minting mistakes occur during the production process, making them both visually appealing and historically important.
The Washington Quarter series has one of the largest collector bases in American numismatics, and unusual errors involving quarter denominations continue to attract significant attention in the marketplace. Errors struck on dime stock are particularly desirable because the thinner metal dramatically alters the appearance and strike quality of the coin, creating an instantly recognizable anomaly.
With its certified authenticity, historic Denver Mint origin, and dramatic wrong stock characteristics, this 1970-D Washington Quarter struck on Roosevelt Dime stock stands as a compelling and highly collectible U.S. Mint error coin with lasting numismatic significance.

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