Metal appears separated on IHC. Is this anealing? 1895 2.9 g

Discussion in 'Error Coins' started by capthank, Apr 22, 2020.

  1. capthank

    capthank Well-Known Member

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  3. Collecting Nut

    Collecting Nut Borderline Hoarder

    What annealing? It's all copper. Blurry but it looks like a silverish metal was added to the copper and now it's peeling off.
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  4. capthank

    capthank Well-Known Member

    I thought there was 5% tin/zinc
  5. paddyman98

    paddyman98 Let me burst your bubble! Supporter

    Your picture is blurry. But I will guess dried adhesive on the Reverse side.
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  6. cpm9ball

    cpm9ball CANNOT RE-MEMBER

    Gee, I looked and looked and looked and couldn't find that dang 5% tin & zinc anywhere. ~ Chris
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  7. capthank

    capthank Well-Known Member

    I thought this might be a lamination error.
  8. capthank

    capthank Well-Known Member

  9. capthank

    capthank Well-Known Member

    Hell of a time with pictures. We get out of sheltering next week and I'll go to my LCD to have a look. I thought adhesive too but under high magnification I didn't think so.
    Let you know when I have it looked at. Thanks all
  10. thomas mozzillo

    thomas mozzillo Supporter! Supporter

    From the Red Book: Indian Head Cents Variety 3 - Bronze (1864-1909)
    Composition .950 copper, .050 tin and zinc.
  11. capthank

    capthank Well-Known Member

    Red Book.950 copper, .050 tin & zinc Variety 3 Bronze 1864-1909 Small Cents page 115, 2013 66 Edition
  12. Collecting Nut

    Collecting Nut Borderline Hoarder

    That does not make them annealed. :)
  13. capthank

    capthank Well-Known Member

    Could the planchet be annealed prior to the die strike? Could the visible metal be tin/zinc?
  14. Oldhoopster

    Oldhoopster It seemed like a good idea at the time.

    Even though the pics are poor (my pics are bad too :facepalm:) it looks like the material is raised above the surface of the coin. It also appears that their is some sort of residue around the perimeter. Looks a lot like residue on the reverse, as @paddyman98 said earlier.

    It's highly unlikely that the zinc and/or tin would remain segregated in the melt especially with no other evidence of improper alloying.

    Objectively look at the coin to determine if this stuff on the rev is raised. If it is, it wasn't there before minting. You can also Try soaking it in acetone (not nail polish remover) and see if the residue dissolves
    Last edited: Apr 24, 2020
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  15. capthank

    capthank Well-Known Member

    In hand it appears raised but under a microscope it is actually gouged and looks like a trough or furrow. I will try acetone. How long should I soak the coin?
  16. capthank

    capthank Well-Known Member

    How long should I leave the coin in acetone?
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