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Tone 1964

What creates this toning on coins?


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  • AUandAGAUandAG Posts: 24,762 ✭✭✭✭✭

    That it is, love silver that tones!!
    bob :)
    vegas baby!

    Registry: CC lowballs (boblindstrom), bobinvegas1989@yahoo.com
  • TomBTomB Posts: 21,239 ✭✭✭✭✭

    The images are so poor that I don't know if we really can have a feel for what it looks like in-hand. To me, the coin "feels" like AT (artificial toning) but again the over-exposure is pretty fierce.

    Thomas Bush Numismatics & Numismatic Photography

    In honor of the memory of Cpl. Michael E. Thompson

    image
  • ShaunBC5ShaunBC5 Posts: 1,727 ✭✭✭✭✭

    I have reason to suspect it has been baked.

  • lermishlermish Posts: 2,913 ✭✭✭✭✭

    Usually environmental exposure to something containing sulfur, whether artificial or natural.

    To me, that particular coin looks like a purpose done job with a hard boiled egg.

  • grote15grote15 Posts: 29,693 ✭✭✭✭✭

    Reverse could at least pass for NT but that obverse is clearly AT.



    Collecting 1970s Topps baseball wax, rack and cello packs, as well as PCGS graded Half Cents, Large Cents, Two Cent pieces and Three Cent Silver pieces.
  • Mr_SpudMr_Spud Posts: 5,349 ✭✭✭✭✭

    Whether natural or artificial, toning is caused by thin film interference creating a prism like effect as light passes through films that form on the surfaces of the coin and reflects back off the metal underneath the films. The films form from the metal interacting with atmospheric sulphides mixed with other elements and humidity.
    See https://en.wikipedia.org/wiki/Thin-film_interference#:~:text=Thin-film interference is a,or reducing the reflected light.

    Mr_Spud

  • gumby1234gumby1234 Posts: 5,584 ✭✭✭✭✭

    Egg shells?
    Crayons?

    Successful BST with ad4400, Kccoin, lablover, pointfivezero, koynekwest, jwitten, coin22lover, HalfDimeDude, erwindoc, jyzskowsi, COINS MAKE CENTS, AlanSki, BryceM

  • Steven59Steven59 Posts: 8,685 ✭✭✭✭✭

    "When they can't find anything wrong with you, they create it!"

  • Morgan13Morgan13 Posts: 1,273 ✭✭✭✭✭

    @Steven59 said:

    Nasty stuff

    Student of numismatics and collector of Morgan dollars
    Successful BST transactions with: Namvet Justindan Mattniss RWW olah_in_MA
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  • emeraldATVemeraldATV Posts: 4,577 ✭✭✭✭✭

    Can color show as overexposed ?
    Details of the strike in the photos posted, certainly have failed us/me to produce any definite answer.
    I would have to agree, color in photos could be over exposed.
    Just my thought on color appearance in hand.
    Pastel
    Silky
    or blotchy.
    Think of this before posting any photos.
    "Would you use this photo in any publication format"
    Were not asking for a LIFE magazine's caliber of photos.
    Although it would be nice. We know and you know, you can do better. Now show your best.
    Knock our socks off.
    Please.

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