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1971 Mint Set. Error or Damaged?

USSID18USSID18 Posts: 862 ✭✭✭✭✭
in U.S. Coin Forum

I'm in the damaged column. Surprisingly, I just noticed someone wrote "25 cent error" on the envelope before I acquired it. Do you have any idea where;.. from the minting process to packaging this could have happened?

Disclaimer: I'm not a dealer, trader, grader, investor or professional numismatist. I'm just a hobbyist. (To protect me but mostly you! 🤣 ) "Formerly OAKSTAR with 8,777 posts"

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    JBKJBK Posts: 17,939 ✭✭✭✭✭

    PSD. Post Strike Damage.

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    USSID18USSID18 Posts: 862 ✭✭✭✭✭

    @JBK said:
    PSD. Post Strike Damage.

    Yes but the question is: How, where and when?

    Disclaimer: I'm not a dealer, trader, grader, investor or professional numismatist. I'm just a hobbyist. (To protect me but mostly you! 🤣 ) "Formerly OAKSTAR with 8,777 posts"

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    GreenstangGreenstang Posts: 1,677 ✭✭✭✭✭
    edited November 6, 2026 11:37AM

    Looks like it has been cut with something, how or
    where is hard to say unless you were their at the time.
    Just a damaged quarter.

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    CaptHenwayCaptHenway Posts: 34,304 ✭✭✭✭✭

    Probably damaged by the gizmo that cuts the Mint Sets apart after the ribbed steel rollers have squeezed the plastic together around the coins. When I visited the Denver Mint's Mint Set packaging department in 1981 there were two people cutting apart flawed sets and stacking up the salvaged coins to go back into the machine. This coin should not have been put back into the machine.

    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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    johnny9434johnny9434 Posts: 34,873 ✭✭✭✭✭
    edited November 6, 2026 12:35PM

    look to be like hit by something, jmo, pms (pmd, whatever it is today)

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    seanqseanq Posts: 8,865 ✭✭✭✭✭

    @CaptHenway said:
    Probably damaged by the gizmo that cuts the Mint Sets apart after the ribbed steel rollers have squeezed the plastic together around the coins. When I visited the Denver Mint's Mint Set packaging department in 1981 there were two people cutting apart flawed sets and stacking up the salvaged coins to go back into the machine. This coin should not have been put back into the machine.

    I agree with Tom, I have seen a few similar errors in Mint sets, along with many with a waffle pattern embossed into the rim from getting caught in the heat sealer that forms the individual cells in the plastic sets.

    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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    USSID18USSID18 Posts: 862 ✭✭✭✭✭

    @seanq said:

    @CaptHenway said:
    Probably damaged by the gizmo that cuts the Mint Sets apart after the ribbed steel rollers have squeezed the plastic together around the coins. When I visited the Denver Mint's Mint Set packaging department in 1981 there were two people cutting apart flawed sets and stacking up the salvaged coins to go back into the machine. This coin should not have been put back into the machine.

    I agree with Tom, I have seen a few similar errors in Mint sets, along with many with a waffle pattern embossed into the rim from getting caught in the heat sealer that forms the individual cells in the plastic sets.

    Sean Reynolds

    Like one of these Sean?

    Disclaimer: I'm not a dealer, trader, grader, investor or professional numismatist. I'm just a hobbyist. (To protect me but mostly you! 🤣 ) "Formerly OAKSTAR with 8,777 posts"

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    cladkingcladking Posts: 30,367 ✭✭✭✭✭

    @CaptHenway said:
    Probably damaged by the gizmo that cuts the Mint Sets apart after the ribbed steel rollers have squeezed the plastic together around the coins. When I visited the Denver Mint's Mint Set packaging department in 1981 there were two people cutting apart flawed sets and stacking up the salvaged coins to go back into the machine. This coin should not have been put back into the machine.

    I have seen a few of these before so this certainly makes sense.

    tempus fugit extra philosophiam.

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