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Mike Byers Mint Error News – Washington Quarter Struck on Half Eagle Gold Coin

Mike Byers Mint Error News - Washington Quarter Struck on Half Eagle Gold Coin

By Mike Byers for Mint Error News ……


1970-S Proof Washington 25¢

Overstruck on 1898 Liberty $5 Gold Coin

8.3 Grams



This gold Washington quarter is far and beyond the most incredible modern United States Mint error ever to be discovered. The closest six-figure modern U.S. Mint error is the famous $1 Sacagawea/Quarter Mule, of which there are over 20 known and sell for between $100k and $250k USD.

This Proof Gold Washington quarter was overstruck on an 1898 $5 Liberty gold coin. Under magnification, the date (1898) is fully visible on the reverse above the words QUARTER DOLLAR. Parts of the $5 Liberty design are visible on both the obverse and the reverse. The coin is in Gem Proof condition and it is amazing that after 50 years, it still looks like it was struck yesterday.

Proof coins are struck by technicians who hand-feed the blanks into special presses. They are produced, examined, and packaged using extreme quality control. It is very unusual to find major Proof errors. A few broadstrikes, off-centers, double strikes (in collar), and off-metals have been found in sealed Proof sets. Proof errors are aggressively sought after by many error collectors.

A very small group of Proof errors recently came from a collection that was auctioned by the State of California. The U.S. Secret Service inspected and released this collection to the State of California determining that it was legal to own. The State of California then auctioned the collection and it has been dispersed since the sale.

There are no equals in the history of modern U.S. coins. This is the only modern issued U.S. coin that was struck as a mint error in GOLD, whether on a blank or previously struck on a U.S. gold coin.

Recently, a U.S. 1913 Buffalo nickel struck in gold on a $5 Indian planchet sold for $400,000. Also recently, one of two known Pan-Pac half dollars struck in gold sold for $750,000.

There are also six U.S. Indian Head cents known that were struck on $2.50 quarter eagle gold planchets, certified by either PCGS or NGC. These are valued from $250k to $400k and are seldom offered for sale.

This unique U.S. gold quarter, authenticated and certified by NGC as Proof 66, belongs as the centerpiece and highlight of any collection of U.S. mint errors or unique numismatic rarities.

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Mike Byers Mint Error News

Mike Byers
Mike Byers
Mike Byers is the Owner, Publisher and Editor of Mint Error News Magazine and the Mint Error News website that was founded in 2003. In 2009, Mike Byers published his first book, World's Greatest Mint Errors, which received the NLG Award for Best World Coin Book.

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  1. Another mint employee purposely created “mint error” hyped by His Highness Mike B. Coin Week and NGC. Give me access to the mint production floor for 45 minutes and see what “rare one of a kinder’s ” I could produce. The average collector sees right through these circus peanut gallery coins. What a bunch of malarkey.

  2. This coin is not a mint error, as it didn’t happen by “accident”… That NGC has chosen to label it as such is a travesty and only encourages current and future men employees to get creative and leave coins to descendants to be sold 50 years later for huge premiums. The government should seize the coin and destroy it.

  3. How can one call this an error coin ? B. S.
    A coin that has been perfectly centered over another is act of fraud not an error

  4. Value is Great, and this Coin is Beautiful…however, I Appreciate the Beauty of ANY Old Coin whether it be an “Error”, Proof, or even My Moderately Worn 1880 O Morgan which is My Favorite by the way. That being said I have 2 agree with these Guys☝️that this INTENTIONALLY Made Fraudulent Coin is kind of an Insult 2 an ACTUAL Error Coin Collector. Can’t believe the S.S. released it 2 Cali. A Private Collector would’ve most likely seen this Cheat of a Coin “Confiscated” Immediately. Lmao! Probly where the “State of Cali” “acquired” this Coin in the 1st Place.js

  5. This coin is not a mint error.
    The original gold coin was minted
    In 1898, if it had been melted and then restruck ; I would accept it as authentic. As it is, it is a mutilated coin after the fact, therefore worthless except for its gold content or about $440.00 USD.

  6. You guys are all just salty. This has the qualification that makes all error coins valuable. The thing that makes it different from all the other coins was done at the mint and it’s super rare. So what if I meant employee purposefully Struck it on that gold coin. It’s not like there’s 300,000 of them. It’s rare and can’t really be duplicated outside the mint, definitely can’t legally be duplicated.

  7. I agree, I can’t see how this coin was not confiscated and destroyed. To allow unscrupulous mint employees to profit in this way simply by virtue of their access to mint equipment is a bit horrifying. And to blur the line for collectors in this way discredits the entire hobby. Leave such fantasies to Daniel Carr, who at least is upfront about what he is doing. That some are able to profit from their mint “connections” while others are not (think the Langbords) is astonishing. Bad call on the Secret Service’s part.


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