Lincoln Cents, thin film interference

Discussion in 'What's it Worth' started by Mark479, Jun 10, 2019.

  1. Mark479

    Mark479 Member

    I know the value is most likely face value but I think they are nice to look at.

    Attached Files:

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  3. paddyman98

    paddyman98 Let me burst your bubble! Supporter

    Thin film interference? o_O
    You lost me there. Can you explain what that means?
  4. cpm9ball

    cpm9ball CANNOT RE-MEMBER

    Me too! Ditto!

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  5. ldhair

    ldhair Clean Supporter

    It's one of those science things about toning. It's over my head so I just call it toning.
    Oldhoopster likes this.
  6. kanga

    kanga 65 Year Collector Supporter

    Very much the same as an oil slick on water.
    When the thickness of the film is in the area of the wavelength of visible light some colors are refracted (or defracted?) and that's what you see.
    I believe the thickness is in the 400-700 nanometer range (VERY thin).
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  7. Seattlite86

    Seattlite86 Outspoken Member

    So... toning? :p
  8. desertgem

    desertgem MODERATOR Senior Errer Collecktor Moderator

  9. Mark479

    Mark479 Member

  10. kanga

    kanga 65 Year Collector Supporter

    Actually ... yes!
  11. Bambam8778

    Bambam8778 Well-Known Member

    I like them! Thanks for sharing!
    Mark479 likes this.
  12. Collecting Nut

    Collecting Nut Borderline Hoarder

    That's a new one, film interference. I like toning better. I understand that word.
  13. Pickin and Grinin

    Pickin and Grinin Well-Known Member

    Can you post some full size photos of the top 2 @Mark479
    They have some neat tones. Love the golden,
    When you upload them. Once uploaded
    Click on the full size option it is easier for us on mobile devices.

    Mark479 likes this.
  14. RLGluvcoins

    RLGluvcoins Active Member

    If we are talking pretty coins I like this one though its probably not worth anything its easy on the eyes... I like the halo. Im noticing the pic doesn't do the color justice.

    Attached Files:

  15. desertgem

    desertgem MODERATOR Senior Errer Collecktor Moderator

    About the halo, copper coins when minted has a patina formed on the surface from the pressure that inhibits corrosion to an extent. When a coin is circulated like the 1967cent of yours , the original patina is worn away from wear, and becomes more easily corroded ( or toned to some who like it) while the patina in the more 'untouchable' areas keeps that more of the original mint coloration, IMO, Jim
    Mark479 likes this.
  16. RLGluvcoins

    RLGluvcoins Active Member

    Tankya any ideas on the last three that I posted on down through the thread
  17. RLGluvcoins

    RLGluvcoins Active Member

    Sorry that on my other thread
  18. Mark479

    Mark479 Member

    3EC811F5-99A9-4C16-A9BA-645B1F73F519.jpeg C0D4B300-F996-424B-81FC-0CBF8C111430.jpeg
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  19. Mark479

    Mark479 Member

  20. RLGluvcoins

    RLGluvcoins Active Member

    If the E in WE is visibly lower than the W is that an error i seen it yesterday on a Lincoln cent would have to find again
    Mark479 likes this.
  21. Mark479

    Mark479 Member

    I didn’t notice that until you pointed it out, Good eye. Let’s see what the long time
    Members think, I’m just a rookie lol
    RLGluvcoins likes this.
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