planchet problem?

Discussion in 'US Coins Forum' started by SmokeMonkey, Feb 6, 2008.

  1. SmokeMonkey

    SmokeMonkey i brake for peace dollars

    while roll searching i came across this lincoln. it has pits in the planchet on both sides and does not appear to be from zinc rot, it looks like it was there from the start as many of the pits are still covered in copper. other than these pits the coin looks reasonably ok for a 2000.

    ive seen rotted zincolns and this doesnt strike me as a rotted zincoln but simply a bad planchet. some of it could be zinc rot but some of these pits, too many IMO, are covered by copper and ive never seen that in zinc rot, every pit should be bare, shouldnt it?
     

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  3. ldhair

    ldhair Clean Supporter

    A bit of nitrogen fertilizer can do some really strange things to these.
     
  4. SmokeMonkey

    SmokeMonkey i brake for peace dollars

    could it cause zinc rot but leave the copper intact leaving a pit? the bigger pits are open and im willing to accept those as plain ole zinc rot but the ones still covered by copper, they should blister and eventually the copper would come off and THEN the pit would form when the corroded zinc fell away but that doesnt appear to be the case.

    and what exactly does nitrogen fertilizer do to a zincoln? this is a new one to me so you'll have to explain and show some pics if you can.
     
  5. Phoenix21

    Phoenix21 Well-Known Member

    Man, that coin gives me the creeps for some reason, LOL. :D I don't know, my guess would be some type of acid or something. Could be wrong though.

    Phoenix :cool:
     
  6. SmokeMonkey

    SmokeMonkey i brake for peace dollars

    lol come on now...you have to admit, it looks like someone shot lincoln in the face with a shotgun. a very very tiny shotgun.
     
  7. Phoenix21

    Phoenix21 Well-Known Member

    It still gives me the willies, rotfl! That is one weird coin. Sorry Smoke. :D A neat find, just creepy to me. I know, I'm weird. Or to be politically correct, abnormally fit. :D

    Phoenix :cool:
     
  8. Magman

    Magman U.S. Money Collector

    It does look like its corroded in the ground, however, as mentioned, if it did its copper plating would be missing.
    Although - its not entirely possible that the copper would corrode away as well - certain fertilizers or chemicals in the ground may have caused this.
     
  9. SmokeMonkey

    SmokeMonkey i brake for peace dollars

    this thing doesnt look like it had been in the ground. aside from the pits, the coins surface look very nice and smooth, color notwithstanding.
     
  10. GDJMSP

    GDJMSP Numismatist Moderator

    Sometimes the copper plating will bubble when it is applied. Looks like that's what happened here.
     
  11. rotobeast

    rotobeast Old Newbie

    Looks like road rash, to me.
     
  12. Magman

    Magman U.S. Money Collector

    yes, but this looks like it has craters in it.
    I have a coin that has bubbles, and they arent this bad, and I dont think it would look like this if I 'popped' them...
     
  13. SmokeMonkey

    SmokeMonkey i brake for peace dollars

    these are not bubbles and ive had road rash coins, this isnt a road rash coin.
     
  14. coinnewbie01

    coinnewbie01 collector of things**

    looks like vice president cheney accidentally peppered it with bird shot to me.
     
  15. SmokeMonkey

    SmokeMonkey i brake for peace dollars

    that means its really collectible now. "Nice shootin' tex!"
     
  16. GDJMSP

    GDJMSP Numismatist Moderator

    No it wouldn't, right away. But once the thin copper plating is gone, then the zinc deteriorates. That's why they use the copper plating to begin with - to protect the zinc and stop it from rotting away.
     
  17. SmokeMonkey

    SmokeMonkey i brake for peace dollars

    but many of the smaller pits are still covered by copper. now i know what happens to zinc when it rots, it turns into an ugly powder and expands like water soaked wood. the plating would then come off eventually THEN you see a pit with no plating. i have pits with plating and even larger pits with some plating going into the larger pits. uncharacteristic of what these zincolns usually do. thats why i posted this, it doesnt exhibit the normal pattern of zinc rot. if it did i wouldnt have bothered anyone about this.

    every cent i see with zinc rot has had clearly defined open wounds in the copper. this one does not. MAYBE its the exception rather than the rule. i dont know. i would like someone else to look at it up close or a few people if possible. its just a cent and im not expecting anything over it but if its a planchet problem then its just a cool find for me and i want to keep it. its not like the mint inspects every planchet one at a time so its possible this is just a bad planchet.
     
  18. ldhair

    ldhair Clean Supporter

    In my opinion it's post mint damage.
    There are several possibilities as to how it happened but it's all the same.
    Whatever created the damage did not break the copper layer in some areas but did in others. I don't feel this is an error coin.
     
  19. Conder101

    Conder101 Numismatist

    Depressions into the surface of the coin which still have there copper plating on the are called DENTS and are caused by some foreign object making forceful contact with the coin. Since the rims of some of those depressions are HIGHER than the surrounding sufaces we know that they had to ocur after the coin was sruck, hence post mint damage.
     
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