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Pillar of the Community
United States
3237 Posts |
Quote:
Note the highest spots on your coin. You can see where it is peeling on the rims. The color on the black beauties runs through the planchet. So it they would wear, the color would not change. Just like the wheat woody coins, the wear does not remove the wood affect. (Un-like the rolling lines on the new copper planchet cents) Are you sure about that, Coop? My understanding has always been that the annealing error that causes them results in a disproportional alloy of copper/nickel rising to the surface of the blanks, which would only affect the color of the outer later of the coin. |
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Moderator
  United States
97033 Posts |
ok, lets try this.  |
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Pillar of the Community
United States
3237 Posts |
@Dearborn my understanding is that equally dark edges are a sign of environmental damage as the collar die and the ejection from the striking chamber supposedly should wear away some of the outer later on a true improperly annealed planchet. Here's a topic in which Fred Weinberg discusses it. https://www.cointalk.com/threads/20...ling.307775/ |
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Moderator
United States
97033 Posts |
In that topic, he is referring to a reeded clad (with a purely copper core) coin. Does his reasoning carry over to a non-reeded Ni/Cu coin with no copper core?
Going back to Fred and his posts you put up, take a good look at the edge of the coin in question. The copper core got shiny upon ejection from the striking chamber but NOT the Cu/NI cladding on the edge. Why is that? Well Because there is no nickel in the copper core to change the color dark...
Edited by Dearborn
02/06/2022 5:24 pm
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Pillar of the Community
United States
885 Posts |
I'd say you got one, Dearborn - that's my story and I'm sticking to it. Either put it in an album or add it to a few dollars and go to your local coffee shop for a beverage.
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Moderator
United States
97033 Posts |
@SamCoin: I think that there is another answer in that same thread you posted up just a while ago that may explain the difference between reed and non-reeded blackened coins. https://www.cointalk.com/threads/20...post-8202371(You may have to scroll up a bit to see my post first then the reply.) Edited by Dearborn
02/06/2022 6:50 pm
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Moderator
United States
97033 Posts |
Quote:
Either put it in an album or add it to a few dollars and go to your local coffee shop for a beverage. WOW, ok, how does one reply to sarcasm, without resorting with the same?  I think This topic has moved on beyond my coin and is now about how to identify a black beauty. Edited by Dearborn
02/06/2022 6:53 pm
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Pillar of the Community
United States
885 Posts |
LOL Dearborn - Me? I'd put in in an Album. Guessing you will as well.
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Pillar of the Community
United States
885 Posts |
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Moderator
United States
97033 Posts |
Quote:
I think coop did good job of that in this topic:
So do I, but there are still some nay-sayers here. |
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Pillar of the Community
Canada
6244 Posts |
Just for curiosity: @"Dear"? do you do an XRF? the simple test to do. The SEM or EDX, EDS involve to much fees.
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Moderator
United States
97033 Posts |
Quote:
Just for curiosity: @"Dear"? do you do an XRF? the simple test to do. No, No I don't Maybe someday.. |
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Pillar of the Community
United States
885 Posts |
I'd like to know what control systems were on the annealing furnaces - anyone have pictures of the late 1950's annealing furnaces? Is it possible they were upgraded to different controls at that time?
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Pillar of the Community
Canada
6244 Posts |
What I know major changes was done in early 60's. The Mint reports to the congress will can clarify this issue.
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Pillar of the Community
United States
3207 Posts |
Dearborn, your coin exhibits the rounding of the letter edges that is typical of a deep black beauty. The improper annealing changes how the letters strike up, making them look relatively less chiseled than non-BBs from the same year and roughly same die state.
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Replies: 40 / Views: 3,000 |
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Posted 02/06/2022 2:55 pm
Uncirculated American Silver Eagles 
