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Error Guys....How is This Even Possible?

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    BruceSBruceS Posts: 1,547 ✭✭✭✭✭
    edited September 12, 2026 1:10PM

    Someone at the mint playing with the press in the late 60s....I would assume..

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    PerryHallPerryHall Posts: 47,745 ✭✭✭✭✭

    There was a lot of shenanigans by mint employees who struck rare coins for personal profit using mint equipment and supplies in the late 1960's and early 1970's. They were called "the midnight minters".

    Worry is the interest you pay on a debt you may not owe.
    "Paper money eventually returns to its intrinsic value---zero."----Voltaire
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    jayPemjayPem Posts: 4,118 ✭✭✭✭✭

    Aren’t $5’s a lot smaller than quarters? How did the whole design fit on there?
    Repeatedly hammered until the coin became larger in diameter?

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    CaptHenwayCaptHenway Posts: 34,159 ✭✭✭✭✭

    @jayPem said:
    Aren’t $5’s a lot smaller than quarters? How did the whole design fit on there?
    Repeatedly hammered until the coin became larger in diameter?

    There is roughly a 3mm difference in diameter between a half eagle and a quarter. All that the half eagle has to do is expand approx. 1.5 mm in all directions to fill the quarter collar. Considering the softness of the gold and the pressure intended for a proof copper-nickel strike, the diameter of the finished piece is not unexpected.

    Professional Numismatist, Retired. 55 year member ANA. Former ANA Senior Authenticator. Winner of four ANA Heath Literary Awards; three Wayte and Olga Raymond Literary Awards; Numismatist of the Year Award 2009, and ANA Lifetime Achievement Award 2020. Winner of the PNG's 2026 Robert Friedberg Award for "The Enigmatic Lincoln Cents of 1922," Available now from Whitman or Amazon.
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    MsMorrisineMsMorrisine Posts: 40,033 ✭✭✭✭✭

    @CaptHenway said:

    @jayPem said:
    Aren’t $5’s a lot smaller than quarters? How did the whole design fit on there?
    Repeatedly hammered until the coin became larger in diameter?

    There is roughly a 3mm difference in diameter between a half eagle and a quarter. All that the half eagle has to do is expand approx. 1.5 mm in all directions to fill the quarter collar. Considering the softness of the gold and the pressure intended for a proof copper-nickel strike, the diameter of the finished piece is not unexpected.

    did they double squeeze the proofs back then?

    Current maintainer of Stone's Master List of Favorite Websites // My BST transactions
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    ByersByers Posts: 1,971 ✭✭✭✭✭
    edited September 12, 2026 2:05PM

    @jayPem said:

    Aren’t $5’s a lot smaller than quarters? How did the whole design fit on there?
    Repeatedly hammered until the coin became larger in diameter?

    The Quarter diameter is 24.2 mm

    The $5 Lib diameter is 21.6 mm

    It was struck twice ( modern U.S. proof coins are struck twice) over the struck $5 Liberty

    The pressure from the Quarter dies expanded the diameter of the $5 Liberty to the size of a quarter.

    I saw this mint error prior to being certified 2 decades ago. And I sold it twice. It has full reeding from the Quarter collar.

    mikebyers.com Dealer in Major Mint Errors, Die Trials & Patterns - Author of NLG Best World Coin Book World's Greatest Mint Errors - Publisher & Editor of minterrornews.com.
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    jayPemjayPem Posts: 4,118 ✭✭✭✭✭

    @Byers said:
    @jayPem said:

    Aren’t $5’s a lot smaller than quarters? How did the whole design fit on there?
    Repeatedly hammered until the coin became larger in diameter?

    The Quarter diameter is 24.2 mm

    The $5 Lib diameter is 21.6 mm

    It was struck twice ( modern U.S. proof coins are struck twice) over the struck $5 Liberty

    The pressure from the Quarter dies expanded the diameter of the $5 Liberty to the size of a quarter.

    I saw this mint error prior to being certified 2 decades ago. And I sold it twice. It has full reeding from the Quarter collar.

    Nice!
    I was also wondering if they used actually proof dies or if the multiple strikes gave it a proof like finish…
    And I would have thought the reeding would be from the $5, not the quarter, so that’s neat. Must feel like a rather skinny quarter!
    This is a cool “error” for sure.

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    CaptHenwayCaptHenway Posts: 34,159 ✭✭✭✭✭

    @MsMorrisine said:

    @CaptHenway said:

    @jayPem said:
    Aren’t $5’s a lot smaller than quarters? How did the whole design fit on there?
    Repeatedly hammered until the coin became larger in diameter?

    There is roughly a 3mm difference in diameter between a half eagle and a quarter. All that the half eagle has to do is expand approx. 1.5 mm in all directions to fill the quarter collar. Considering the softness of the gold and the pressure intended for a proof copper-nickel strike, the diameter of the finished piece is not unexpected.

    did they double squeeze the proofs back then?

    While I was at Coin World (1973-1978) and ANACS (1978-1984) I saw quite a few of the 1968-on San Francisco Mint Proofs with a tiny bit of movement between two strikles.

    Professional Numismatist, Retired. 55 year member ANA. Former ANA Senior Authenticator. Winner of four ANA Heath Literary Awards; three Wayte and Olga Raymond Literary Awards; Numismatist of the Year Award 2009, and ANA Lifetime Achievement Award 2020. Winner of the PNG's 2026 Robert Friedberg Award for "The Enigmatic Lincoln Cents of 1922," Available now from Whitman or Amazon.
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    ByersByers Posts: 1,971 ✭✭✭✭✭

    @CaptHenway said:

    @MsMorrisine said:

    @CaptHenway said:

    @jayPem said:
    Aren’t $5’s a lot smaller than quarters? How did the whole design fit on there?
    Repeatedly hammered until the coin became larger in diameter?

    There is roughly a 3mm difference in diameter between a half eagle and a quarter. All that the half eagle has to do is expand approx. 1.5 mm in all directions to fill the quarter collar. Considering the softness of the gold and the pressure intended for a proof copper-nickel strike, the diameter of the finished piece is not unexpected.

    did they double squeeze the proofs back then?

    While I was at Coin World (1973-1978) and ANACS (1978-1984) I saw quite a few of the 1968-on San Francisco Mint Proofs with a tiny bit of movement between two strikles.

    Correct. Some have the slightest shift between the 2 strikes. If it is a minimum of a 5% rotation, PCGS and NGC will designate it as ‘double struck, slight rotation’.

    mikebyers.com Dealer in Major Mint Errors, Die Trials & Patterns - Author of NLG Best World Coin Book World's Greatest Mint Errors - Publisher & Editor of minterrornews.com.
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    oldabeintxoldabeintx Posts: 3,214 ✭✭✭✭✭

    Two things occur to me when i see this. One, it isn’t a mint error. Two, what a monumental waste of money, sad really.

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    cameonut2011cameonut2011 Posts: 10,844 ✭✭✭✭✭
    edited September 14, 2026 11:33AM

    I'll go further than the OP. How is this legal to own? I find it implausible that it was an "accidental" strike and intentionally made errors are contraband that would be subject to government seizure, no?

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    RedRocketRedRocket Posts: 1,917 ✭✭✭✭✭

    @oldabeintx said:
    Two things occur to me when i see this. One, it isn’t a mint error. Two, what a monumental waste of money, sad really.

    Don't you find it odd to have an emotional reaction to the way a stranger to you spends their money?

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    cameonut2011cameonut2011 Posts: 10,844 ✭✭✭✭✭

    @PerryHall said:
    There was a lot of shenanigans by mint employees who struck rare coins for personal profit using mint equipment and supplies in the late 1960's and early 1970's. They were called "the midnight minters".

    Where there ever any prosecutions?

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    oldabeintxoldabeintx Posts: 3,214 ✭✭✭✭✭

    @RedRocket said:

    @oldabeintx said:
    Two things occur to me when i see this. One, it isn’t a mint error. Two, what a monumental waste of money, sad really.

    Don't you find it odd to have an emotional reaction to the way a stranger to you spends their money?

    No. The acts of strangers cause me to react emotionally all the time. That’s why I mostly watch Golf Channel rather than the news.

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    RedRocketRedRocket Posts: 1,917 ✭✭✭✭✭

    @oldabeintx said:

    @RedRocket said:

    @oldabeintx said:
    Two things occur to me when i see this. One, it isn’t a mint error. Two, what a monumental waste of money, sad really.

    Don't you find it odd to have an emotional reaction to the way a stranger to you spends their money?

    No. The acts of strangers cause me to react emotionally all the time. That’s why I mostly watch Golf Channel rather than the news.

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    fathomfathom Posts: 2,200 ✭✭✭✭✭

    One synonym for a deliberate error is "Mountweazel". Used in literature to detect plagiarism.

    Which I find fascinating and at the same time chillingly descriptive.

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    seanqseanq Posts: 8,834 ✭✭✭✭✭

    @cameonut2011 said:

    @PerryHall said:
    There was a lot of shenanigans by mint employees who struck rare coins for personal profit using mint equipment and supplies in the late 1960's and early 1970's. They were called "the midnight minters".

    Where there ever any prosecutions?

    The story is well known and I believe Mike Byers has linked to the longer version, but basically the biggest tranch of coins were found in an abandoned safety deposit box and forfeited to the state of California. They ran it by the Secret Service and were cleared to auction off the contents. I believe other errors that were not in that auction but were obviously produced by the same means also came into the hobby and are legal to own by association.

    Sean Reynolds

    Incomplete planchets wanted, especially Lincoln Cents & type coins.

    "Keep in mind that most of what passes as numismatic information is no more than tested opinion at best, and marketing blather at worst. However, I try to choose my words carefully, since I know that you guys are always watching." - Joe O'Connor
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    itsnotjustmeitsnotjustme Posts: 8,789 ✭✭✭

    Like oldabeintx I don't think this should qualify as an error. It was created intentionally.

    Give Blood (Red Bags) & Platelets (Yellow Bags)!
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    ByersByers Posts: 1,971 ✭✭✭✭✭

    @seanq said:

    @cameonut2011 said:

    @PerryHall said:
    There was a lot of shenanigans by mint employees who struck rare coins for personal profit using mint equipment and supplies in the late 1960's and early 1970's. They were called "the midnight minters".

    Where there ever any prosecutions?

    The story is well known and I believe Mike Byers has linked to the longer version, but basically the biggest tranch of coins were found in an abandoned safety deposit box and forfeited to the state of California. They ran it by the Secret Service and were cleared to auction off the contents. I believe other errors that were not in that auction but were obviously produced by the same means also came into the hobby and are legal to own by association.

    Sean Reynolds

    Sean- that was a nice quick summary…

    mikebyers.com Dealer in Major Mint Errors, Die Trials & Patterns - Author of NLG Best World Coin Book World's Greatest Mint Errors - Publisher & Editor of minterrornews.com.
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    GaCoinGuyGaCoinGuy Posts: 2,866 ✭✭✭✭

    How was it determined that it was an 1898 $5? Are there some indicators that do not show in the photos?

    imageimage

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    ByersByers Posts: 1,971 ✭✭✭✭✭

    @GaCoinGuy said:
    How was it determined that it was an 1898 $5? Are there some indicators that do not show in the photos?

    The date 1898 is visible under the QUARTER DOLLAR

    mikebyers.com Dealer in Major Mint Errors, Die Trials & Patterns - Author of NLG Best World Coin Book World's Greatest Mint Errors - Publisher & Editor of minterrornews.com.
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    GaCoinGuyGaCoinGuy Posts: 2,866 ✭✭✭✭

    @Byers said:

    @GaCoinGuy said:
    How was it determined that it was an 1898 $5? Are there some indicators that do not show in the photos?

    The date 1898 is visible under the QUARTER DOLLAR

    Okay, now I see it. Thanks!

    imageimage

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    johnny9434johnny9434 Posts: 34,028 ✭✭✭✭✭

    @itsnotjustme said:
    Like oldabeintx I don't think this should qualify as an error. It was created intentionally.

    Sometimes it passes the time of day for some threads

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    Back in the mid-1800's, it's well known that mint employees made numerous patterns and experimental type of coins intentionally, snuck them illicitly out of the Mint, and sold them on the market. Eventually that was stopped to large degree (I believe in the early 1880s.)

    In the 1960's-1970's, there was certainly a lot of proof and other error coins that got out through similar means. Greed has always been a strong motivator, and the result has been some wild errors. However, that said, some were in fact, doubtless, made by accident and escaped legitimately.

    At the recent ANA this year, a dealer walked up to my table a modern silver proof set (which I purchased), which has a dime with a large 25% indent in its obverse--it fit into the proof set holder, and escaped 100% legitimately. So proof errors do happen, and do get out from time to time legitimately.

    www.sullivannumismatics.com Dealer in Mint Error Coins since 2003.
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    ByersByers Posts: 1,971 ✭✭✭✭✭
    edited September 17, 2026 8:00AM

    @SullivanNumismatics said:
    Back in the mid-1800's, it's well known that mint employees made numerous patterns and experimental type of coins intentionally, snuck them illicitly out of the Mint, and sold them on the market. Eventually that was stopped to large degree (I believe in the early 1880s.)

    In the 1960's-1970's, there was certainly a lot of proof and other error coins that got out through similar means. Greed has always been a strong motivator, and the result has been some wild errors. However, that said, some were in fact, doubtless, made by accident and escaped legitimately.

    At the recent ANA this year, a dealer walked up to my table a modern silver proof set (which I purchased), which has a dime with a large 25% indent in its obverse--it fit into the proof set holder, and escaped 100% legitimately. So proof errors do happen, and do get out from time to time legitimately.

    Jon- you referenced the early 1880’s, but actually this continued for a few more decades…

    The Gold Indian Head Cents struck from 1900-1906 (I have handled three of them)

    The 1913 Liberty Head Nickels, unofficially struck and smuggled out

    The 1913 Gold Buffalo Nickel ( that I sold for $400k)

    And countless others…

    mikebyers.com Dealer in Major Mint Errors, Die Trials & Patterns - Author of NLG Best World Coin Book World's Greatest Mint Errors - Publisher & Editor of minterrornews.com.
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    @Byers said:

    @SullivanNumismatics said:
    Back in the mid-1800's, it's well known that mint employees made numerous patterns and experimental type of coins intentionally, snuck them illicitly out of the Mint, and sold them on the market. Eventually that was stopped to large degree (I believe in the early 1880s.)

    In the 1960's-1970's, there was certainly a lot of proof and other error coins that got out through similar means. Greed has always been a strong motivator, and the result has been some wild errors. However, that said, some were in fact, doubtless, made by accident and escaped legitimately.

    At the recent ANA this year, a dealer walked up to my table a modern silver proof set (which I purchased), which has a dime with a large 25% indent in its obverse--it fit into the proof set holder, and escaped 100% legitimately. So proof errors do happen, and do get out from time to time legitimately.

    Jon- you referenced the early 1880’s, but actually this continued for a few more decades…

    The Gold Indian Head Cents ( I have handled three of them)

    The 1913 Liberty Head Nickels, unofficially struck and smuggled out

    The 1913 Gold Buffalo Nickel ( that I sold for $400k)

    And countless others…

    Yes, it did, but the spigot was turned way down from the outpouring of custom made pattern pieces for profit by mint employees.

    It's never really stopped even in recent years. There will always be coins snuck out by employees of the mint looking to make a dollar (or, thousands of dollars.)

    www.sullivannumismatics.com Dealer in Mint Error Coins since 2003.
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    ByersByers Posts: 1,971 ✭✭✭✭✭

    @SullivanNumismatics said:

    @Byers said:

    @SullivanNumismatics said:
    Back in the mid-1800's, it's well known that mint employees made numerous patterns and experimental type of coins intentionally, snuck them illicitly out of the Mint, and sold them on the market. Eventually that was stopped to large degree (I believe in the early 1880s.)

    In the 1960's-1970's, there was certainly a lot of proof and other error coins that got out through similar means. Greed has always been a strong motivator, and the result has been some wild errors. However, that said, some were in fact, doubtless, made by accident and escaped legitimately.

    At the recent ANA this year, a dealer walked up to my table a modern silver proof set (which I purchased), which has a dime with a large 25% indent in its obverse--it fit into the proof set holder, and escaped 100% legitimately. So proof errors do happen, and do get out from time to time legitimately.

    Jon- you referenced the early 1880’s, but actually this continued for a few more decades…

    The Gold Indian Head Cents ( I have handled three of them)

    The 1913 Liberty Head Nickels, unofficially struck and smuggled out

    The 1913 Gold Buffalo Nickel ( that I sold for $400k)

    And countless others…

    Yes, it did, but the spigot was turned way down from the outpouring of custom made pattern pieces for profit by mint employees.

    It's never really stopped even in recent years. There will always be coins snuck out by employees of the mint looking to make a dollar (or, thousands of dollars.)

    To many to mention, even in modern times. The Sac Dollar/Quarter mules, Cent dies struck into Quarters and Sac Dollars are just a few examples.

    Intentionally created mint errors weren’t all proof. Many are mint state!

    mikebyers.com Dealer in Major Mint Errors, Die Trials & Patterns - Author of NLG Best World Coin Book World's Greatest Mint Errors - Publisher & Editor of minterrornews.com.
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    FredWeinbergFredWeinberg Posts: 6,039 ✭✭✭✭✭

    Nails

    Retired Collector & Dealer in Major Mint Error Coins & Currency since the 1960's.Co-Author of Whitman's "100 Greatest U.S. Mint Error Coins", and the Error Coin Encyclopedia, Vols., III & IV. Retired Authenticator for Major Mint Errors for PCGS. A 50+ Year PNG Member.A full-time numismatist since 1972, retired in 2022.
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    @Byers said:

    @SullivanNumismatics said:

    @Byers said:

    @SullivanNumismatics said:
    Back in the mid-1800's, it's well known that mint employees made numerous patterns and experimental type of coins intentionally, snuck them illicitly out of the Mint, and sold them on the market. Eventually that was stopped to large degree (I believe in the early 1880s.)

    In the 1960's-1970's, there was certainly a lot of proof and other error coins that got out through similar means. Greed has always been a strong motivator, and the result has been some wild errors. However, that said, some were in fact, doubtless, made by accident and escaped legitimately.

    At the recent ANA this year, a dealer walked up to my table a modern silver proof set (which I purchased), which has a dime with a large 25% indent in its obverse--it fit into the proof set holder, and escaped 100% legitimately. So proof errors do happen, and do get out from time to time legitimately.

    Jon- you referenced the early 1880’s, but actually this continued for a few more decades…

    The Gold Indian Head Cents ( I have handled three of them)

    The 1913 Liberty Head Nickels, unofficially struck and smuggled out

    The 1913 Gold Buffalo Nickel ( that I sold for $400k)

    And countless others…

    Yes, it did, but the spigot was turned way down from the outpouring of custom made pattern pieces for profit by mint employees.

    It's never really stopped even in recent years. There will always be coins snuck out by employees of the mint looking to make a dollar (or, thousands of dollars.)

    To many to mention, even in modern times. The Sac Dollar/Quarter mules, Cent dies struck into Quarters and Sac Dollars are just a few examples.

    Intentionally created mint errors weren’t all proof. Many are mint state!

    Certainly, (custom) employee mint made products never stopped. My point was that certain eras resulted in an outpouring of errors, patterns, or other customer mint made material. Proofs, business strikes, all had their heyday for certain years or decades over the last 200 years.

    www.sullivannumismatics.com Dealer in Mint Error Coins since 2003.
  • Options
    ByersByers Posts: 1,971 ✭✭✭✭✭

    @FredWeinberg said:
    Nails

    Hi Fred!

    Thanks for your detailed explanation and description as you join the conversation.

    mikebyers.com Dealer in Major Mint Errors, Die Trials & Patterns - Author of NLG Best World Coin Book World's Greatest Mint Errors - Publisher & Editor of minterrornews.com.
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    ByersByers Posts: 1,971 ✭✭✭✭✭

    @SullivanNumismatics said:

    @Byers said:

    @SullivanNumismatics said:

    @Byers said:

    @SullivanNumismatics said:
    Back in the mid-1800's, it's well known that mint employees made numerous patterns and experimental type of coins intentionally, snuck them illicitly out of the Mint, and sold them on the market. Eventually that was stopped to large degree (I believe in the early 1880s.)

    In the 1960's-1970's, there was certainly a lot of proof and other error coins that got out through similar means. Greed has always been a strong motivator, and the result has been some wild errors. However, that said, some were in fact, doubtless, made by accident and escaped legitimately.

    At the recent ANA this year, a dealer walked up to my table a modern silver proof set (which I purchased), which has a dime with a large 25% indent in its obverse--it fit into the proof set holder, and escaped 100% legitimately. So proof errors do happen, and do get out from time to time legitimately.

    Jon- you referenced the early 1880’s, but actually this continued for a few more decades…

    The Gold Indian Head Cents ( I have handled three of them)

    The 1913 Liberty Head Nickels, unofficially struck and smuggled out

    The 1913 Gold Buffalo Nickel ( that I sold for $400k)

    And countless others…

    Yes, it did, but the spigot was turned way down from the outpouring of custom made pattern pieces for profit by mint employees.

    It's never really stopped even in recent years. There will always be coins snuck out by employees of the mint looking to make a dollar (or, thousands of dollars.)

    To many to mention, even in modern times. The Sac Dollar/Quarter mules, Cent dies struck into Quarters and Sac Dollars are just a few examples.

    Intentionally created mint errors weren’t all proof. Many are mint state!

    Certainly, (custom) employee mint made products never stopped. My point was that certain eras resulted in an outpouring of errors, patterns, or other customer mint made material. Proofs, business strikes, all had their heyday for certain years or decades over the last 200 years.

    Jumping past the heyday of the 70’s with intentional mint state and proof errors…

    In 1999 and 2000, a large number of intentional errors surfaced. Things never seen before in any quantity. Bonded clusters and exotic St Q off metals are just a few examples.

    Then it jumps to 2007 when many Denver mint mark intentional errors surfaced.

    mikebyers.com Dealer in Major Mint Errors, Die Trials & Patterns - Author of NLG Best World Coin Book World's Greatest Mint Errors - Publisher & Editor of minterrornews.com.
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    RedRocketRedRocket Posts: 1,917 ✭✭✭✭✭

    @Byers said:

    @FredWeinberg said:
    Nails

    Hi Fred!

    Thanks for your detailed explanation and description as you join the conversation.

    Fred, never at a loss for word.

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