1987 Lincoln...struck Through Wire/String ?or PMD?

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Author	Replies: 8 / Views: 2,317
monika Pillar of the Community United States 746 Posts	Posted 01/08/2014 9:56 pm Hello just going through some coins and found this 1987 lincoln.Do you guy's think it looks like a struck through something? I think it is a struck through but would like to have an expert opinion. Thank you very much Report this Post to the Staff

SsuperDdave Moderator United States 23522 Posts	Posted 01/08/2014 10:19 pm Fascinating. I'm deferring to the Lincoln experts, but at first blush it sure looks like a really cool strikethrough. Report this Post to the Staff
monika Pillar of the Community United States 746 Posts	Posted 01/08/2014 11:31 pm Thank you SsuperDdave.Just to bad about those blemishes on the coin.Any idea how to get rid of those?I used Acetone,got a bit cleaner but didn't face those spots. Report this Post to the Staff
Sudz Pillar of the Community United States 1572 Posts	Posted 01/08/2014 11:38 pm with SsuperDdave, it looks legit to me. As far as the carbon spots (I think that's what you are dealing with) are concerned, I don't think they can be removed without ruining the coin. I've tried water, acetone, and Verdi-Care (in that order) to no avail. Very cool find, Monika! Report this Post to the Staff
SsuperDdave Moderator United States 23522 Posts	Posted 01/09/2014 01:16 am Yeah, the zlincolns corrode in weird and irreversible ways. I'm currently making my living in the recycling industry; part of my work exposure regularly nets me coins which have been through the refinement process. I get usable coppers regularly, and 1- or 2-year-old zlincolns which have been forever trashed by the same process. They have no resistance to imperfect conditions. Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 01/09/2014 02:04 am It is a struck through thread. As far a carbon spots, no. There is no carbon in the zinc plated planchets. More of a stain issue. Probably sneeze droplets that contaminated the coin. I'd leave it alone. It is now a stain. I find the struck through thread issues a lot on proof cents. Just a piece of fiber that gets into the striking chamber. I found what causes this on a coin that I found once. https://www.coincommunity.com/forum...y_cent_1.jpg It was the only example in the roll that looked like that. Report this Post to the Staff
SsuperDdave Moderator United States 23522 Posts	Posted 01/09/2014 02:16 am That's spectacular, coop. Hard to visualize that something as thin as nylon string - you can break it easily in your hands - also has the structural integrity to imprint its' cross-section cleanly into metal. Report this Post to the Staff
Sudz Pillar of the Community United States 1572 Posts	Posted 01/09/2014 07:35 am Quote: There is no carbon in the zinc plated planchets. More of a stain issue. Thanks, Coop, I just learned something new... I appreciate it! Report this Post to the Staff
monika Pillar of the Community United States 746 Posts	Posted 01/09/2014 12:13 pm Thanks a lot for your info .You guy's are great :) Report this Post to the Staff
	Replies: 8 / Views: 2,317

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