BLACK LINE ON COINS

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LOCK34
LOCK34 Posts: 135 ✭✭✭
in U.S. Coin Forum


Have a few coins with this same black discoloration. All were in sealed envelopes with no seam to allow contamination in a straight line like that. What causes this? Thank you!

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  • coinbuf
    coinbuf Posts: 12,567 ✭✭✭✭✭
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    Its corrosion, I would bet that before the coin was cleaned the entire surface was very dark to almost black, The cleaning/dipping took the worst off but that area is etched into the coin and is more stubborn to remove. The etching itself may have been caused by a rubber band.

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  • ricko
    ricko Posts: 98,724 ✭✭✭✭✭
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    Could be the sealing chemical....You cannot have a sealed envelope without a seam....Cheers, RickO

  • PerryHall
    PerryHall Posts: 47,752 ✭✭✭✭✭
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    The holder had a rubber band around it. Rubber bands are very high in sulfur. Stretch one a few times and smell it. Many years ago a fellow coin club member had a brilliant proof Trade dollar that he stored in a small cardboard box lined with cotton. He stored it for several years with a rubber band holding the box lid on. There was a dark black line crossing the surface of his coin. This is why I always keep rubber bands away from my coins.

    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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  • LOCK34
    LOCK34 Posts: 135 ✭✭✭
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    Coins were never cleaned. Stored in glassine envelopes for decades. No glue on envelopes. Should have been more specific😁 Thanks!

  • philographer
    philographer Posts: 1,383 ✭✭✭✭✭
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    I do not have one rubber band in my house. Danger.

    He who knows he has enough is rich.

  • LOCK34
    LOCK34 Posts: 135 ✭✭✭
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    I am a skydiver, I have hundreds of rubber bands at home at all times😁😁😁

  • LOCK34
    LOCK34 Posts: 135 ✭✭✭
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    May have had rubber bands on them at some point in the past.

  • LOCK34
    LOCK34 Posts: 135 ✭✭✭
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    @PerryHall said:
    The holder had a rubber band around it. Rubber bands are very high in sulfur. Stretch one a few times and smell it. Many years ago a fellow coin club member had a brilliant proof Trade dollar that he stored in a small cardboard box lined with cotton. He stored it for several years with a rubber band holding the box lid on. There was a dark black line crossing the surface of his coin. This is why I always keep rubber bands away from my coins.

    👍👍👍👍👍👍

  • Smudge
    Smudge Posts: 10,001 ✭✭✭✭✭
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    Rubber band is my first thought.

  • CaptHenway
    CaptHenway Posts: 34,164 ✭✭✭✭✭
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    Ditto rubber band damage.

    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.
  • jwitten
    jwitten Posts: 5,419 ✭✭✭✭✭
    edited September 18, 2020 10:35AM
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    @LOCK34 said:
    I am a skydiver, I have hundreds of rubber bands at home at all times😁😁😁

    I fly a 182 for skydivers occasionally in Kentucky!

  • johnny9434
    johnny9434 Posts: 34,054 ✭✭✭✭✭
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    looks like rubber band damage to me as well

  • LOCK34
    LOCK34 Posts: 135 ✭✭✭
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    @jwitten said:

    @LOCK34 said:
    I am a skydiver, I have hundreds of rubber bands at home at all times😁😁😁

    I fly a 182 for skydivers occasionally in Kentucky!

    As you should😁😁😁
    Usually jump from Twin Otters and Caravans, but jump at a DZ in Lexington, Texas that flies two 182s🪂🪂🪂

  • JBK
    JBK Posts: 17,860 ✭✭✭✭✭
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    @LOCK34 said:
    Coins were never cleaned.

    ?? I am not expert but that coin looks heavily cleaned to me. Maybe not by you, but by someone else....

  • MFeld
    MFeld Posts: 17,132 ✭✭✭✭✭
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    @LOCK34 said:
    Coins were never cleaned. Stored in glassine envelopes for decades. No glue on envelopes. Should have been more specific😁 Thanks!

    Unless you were born a lot earlier than I’d guess and have had possession of the coin since 1878😉, you can’t know that. It looks to have been cleaned.

    Mark Feld* of Heritage Auctions*Unless otherwise noted, my posts here represent my personal opinions.

  • ctf_error_coins
    ctf_error_coins Posts: 15,433 ✭✭✭✭✭
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    Rubber band for sure

  • Dave99B
    Dave99B Posts: 8,947 ✭✭✭✭✭
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    My guess: Rubber band.

    Dave

    Always looking for original, better date VF20-VF35 Barber quarters and halves, and a quality beer.
  • LOCK34
    LOCK34 Posts: 135 ✭✭✭
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    Of course it could have been cleaned. Would have likely been done before 1930 if so. Not arguing.

  • PTVETTER
    PTVETTER Posts: 6,134 ✭✭✭✭✭
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    If it is a rubber band, it's the kiss of death!
    It will always come back!

    Pat Vetter,Mercury Dime registry set,1938 Proof set registry,Pat & BJ Coins:724-325-7211


  • oih82w8
    oih82w8 Posts: 13,208 ✭✭✭✭✭
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    On a positive note;

    https://youtu.be/6ODQlS8GNFQ

    oih82w8 = Oh I Hate To Wait _defectus patientia_aka...Dr. Defecto - Curator of RMO's

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  • LOCK34
    LOCK34 Posts: 135 ✭✭✭
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    Wonder if they had a roadie who collected coins..............

  • android01
    android01 Posts: 306 ✭✭✭✭✭
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    I had no idea rubber bands had a high sulfur content. I always use a rubber band or two to secure five or more flips with coins in them. That way they're not scattered all over my desk. I suppose I should reconsider this practice.

  • chesterb
    chesterb Posts: 995 ✭✭✭✭✭
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    @android01 said:
    I had no idea rubber bands had a high sulfur content. I always use a rubber band or two to secure five or more flips with coins in them. That way they're not scattered all over my desk. I suppose I should reconsider this practice.

    Bad idea! I've been there, done that and it didn't end well!

  • Jimnight
    Jimnight Posts: 10,846 ✭✭✭✭✭
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    Nice pics!

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