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 Replies: 9 / Views: 2,207 |
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Valued Member
Nauru
65 Posts |
I have recently got a $2.00 which part of it appears to be sunken. The part of the surface appears to be ripped out of the coin leaving a second layer. The words of the coin a still there in the second layer. A second long crack line forms from the 'S' down to the rim below the image The beauty of the coin is that the number 9 and the second 8 in 1988 appears to shadow the numbers 1 and 1st 8. The word 'Aust' appears to be floating while 'ral' looks sunken while 'ia' floating. It's a real beaut. Can anyone explain what is the possible cause and what's its classification eg error etc?  http://www.coincommunity.com/forum/...arserror.jpg target _blank rel nofollow  twodollarserror.jpg /a br / 24.75 nbsp KB" border="0" style='cursor:default' onClick='doimage(this,event)'> |
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Formerly nancyc
Australia
5385 Posts |
I've got a 20¢ that looks a little similar to your coin, but much more severe & involves both sides. My guess for yours would be a faulty planchet that has lost a section of the surface either prior to or after the minting process. https://goccf.com/t/29749life is a mystery to be lived not a problem to be solved
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Pillar of the Community
Australia
1040 Posts |
Yes, looks like a planchet fault to me.
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Pillar of the Community
Australia
1295 Posts |
That coin has a lamination flaw or a partial split planchet. Part of the planchet has peeled off because of a weakness that runs in a layer in the metal.
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Formerly nancyc
Australia
5385 Posts |
markn, Would the part that has peeled off have done so before or after the minting process?
life is a mystery to be lived not a problem to be solved
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Pillar of the Community
Australia
1295 Posts |
Hi Nancy, That one looks like post mint to me, as the vast majority of this sort of error are. The surfaces of the portrait and legend look rough, which would be the case if the metal has peeled after being struck. Coins that have been struck after the planchet has peeled are few and far between, you can see a 5c that was struck after splitting here: http://www.australian-threepence.co...-part-2.html Notice how some of the surfaces still look smooth (in contrast to the peeled part of the $2). Mark |
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Formerly nancyc
Australia
5385 Posts |
Thanks Mark. I figured it would be post mint.
What's your opinion of what might have happened to the 20¢ in my above post.
life is a mystery to be lived not a problem to be solved
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Pillar of the Community
Australia
1295 Posts |
Hi Nancy,
Well first thought was a post strike peel but the texture is all wrong and it's on both sides. It may well happen, but I've never seen a peel on both sides of a coin before. Als, for the two layers of flaw in the metal to end at about the same spot so the same amount of metal peels from both sides seems a bit far fetched. It's not struck through because to my eyes the planchet looks thinner (is it?) where the design is obliterated. I'll go with a dunk in acid. I've had several acid dipped pennys and the legends looked very much like the legends on that coin.
Mark
Edited by markn
10/04/2008 04:31 am
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Formerly nancyc
Australia
5385 Posts |
Thanks Mark, When I took it to a Coin club meeting a while back, one of the opinions there was a possible acid dip. I might see if I can measure the thickness. Sorry for hi-jacking your topic Davidson.   life is a mystery to be lived not a problem to be solved
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Valued Member
 Nauru
65 Posts |
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Replies: 9 / Views: 2,207 |
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Posted 09/29/2008 10:36 pm
