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 Replies: 13 / Views: 1,412 |
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Bedrock of the Community
United States
19948 Posts |
I couldn't believe this coin, brown with verdigris and just a few months old:   |
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Pillar of the Community
United States
1534 Posts |
Wow! And people say these haven't been circulating. You found it roll searching?
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Valued Member
United States
61 Posts |
Strange... I occasionally come across wheaties that are in better shape than this
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Bedrock of the Community
 United States
19948 Posts |
Yea, found it in a bag I'm working on. I couldn't believe it!
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Pillar of the Community
United States
5611 Posts |
Thad, I guess the Mint's message found in the 2009 Uncirculated Mint sets, warning about early tarnishing is true, about the "1909 alloy mixture being used for these coins in 2009, unless this is a business strike and all is out the window.
When you received this coin from circ, did you clean or soak it in acetone, if not would that at this stage be helpful?
Something tells me there are different types & strengths of the metals used for these coins, on a molecular basis, I would bet the composition is not exact. I do not remember any problem with the coins dated from 1909- early 1982, Do you?
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Moderator
 United States
16679 Posts |
Interesting Thad. They generally take, what, years to go RB then full BN. My guess would be rapid toning due to possibly being exposed to soil or moisture or both. I don't see any signs of corrosion other than the verdigris.
swcoin.ecrater.com
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Bedrock of the Community
United States
12437 Posts |
LOL, I found one a couple weeks ago while walking to my Monday night Bid Board that looked just like that one. It was laying in dirt/grass next to a high school and from appearances, it had been there a while. I would imagine that this coin has suffered similar outdoor environmental exposure. Quote:
Something tells me there are different types & strengths of the metals used for these coins, on a molecular basis, I would bet the composition is not exact. I do not remember any problem with the coins dated from 1909- early 1982 It is a commonly held misconception that the Lincoln Cent had one composition from 1909-1982(not counting 1943). The original composition was 95% CU, 3% Zn, 2%Sn and that was maintained until 1942. 1943 was the zinc plated steel and 1944-46 cents used the "shellcase bronze" with recycled artillery shells added to the mix which altered the coinage composition a bit and introduced trace amounts of sulfur from gunpowder and explosive residue. After that period, the amount of tin was scaled back until it was removed altogether in 1962. At that time, the Lincoln bronze cents became Lincoln brass cents, bronze is copper and tin while brass is copper and zinc. The pre-WWII issues did have significant problems- laminations and wood grain was commonplace on those cents and I believe that the Mint did not want a repeat in 2009 of what would now be considered an inferior quality of metal stock. With this information in hand, it is obvious that the US Mint has not worked with this metal composition in five or six decades. Edited by biokemist6
10/13/2009 01:12 am
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Pillar of the Community
United States
3499 Posts |
I'm not too surprised. I have found a few brown 2009s as well. I also opened a BU roll and was quite shocked that a few had some really bad scratches which revealed the zinc layer. Just surprising that that would happen even before being liberated from a supposedly all mint roll.
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Pillar of the Community
United States
6326 Posts |
 Have found a few like this too........  |
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Pillar of the Community
United States
2520 Posts |
I just found my first LP3 in a customer wrapped roll! Barely any red and mostly brown with a bluish tint!
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Pillar of the Community
United States
2734 Posts |
Amazing that the zinc isn't showing through, particularly on those large hits on Abe's shoulder... An MD'er may have found this one...  Are you sure you didn't beam this coin back from the year 2059 with a time machine?  Edited by DNA
10/13/2009 8:20 pm
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Valued Member
United States
114 Posts |
Maybe this was planned as now the cabin looks more lifelike in the brown color Ya that;s it it's all part of the plan! JC |
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Pillar of the Community
United States
869 Posts |
Thad, Were you trying to be the first one with a toned 09 ? what ever you used didn't work buddy.  Or maybe you found one of bigg Freds trial coins he used for adjusting the junk/zinc settings on his metal detector |
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Pillar of the Community
United States
2541 Posts |
I've also found a few crummy looking ones in rolls. Quite suprising - especially when I find a 1970s or 1980s coin that appears to be BU!
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Replies: 13 / Views: 1,412 |
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Posted 10/12/2009 9:43 pm
