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What Causes A 100% Split Planchet?

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Bedrock of the Community
Bryan1315's Avatar
United States
14454 Posts
 Posted 10/03/2007  08:15 am Show Profile   Bookmark this topic Add Bryan1315 to your friends list Get a Link to this Message Number of Subscribers
I have never seen this before but was searching on ebay and happened to see this thing, can someone explain how this happened http://cgi.ebay.com/1916-Buffalo-wi...GS_W0QQitemZ270170463672QQihZ017QQcategoryZ524QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
Pillar of the Community
foundinrolls's Avatar
United States
3507 Posts
 Posted 10/03/2007  4:46 pm  Show Profile   Bookmark this reply Add foundinrolls to your friends list Get a Link to this Reply
Ok, Imagine this. This will be to describe the effect not to say that the metal in a strip of coinage material is made this way. This is just to describe the end result.

Imagine cookie dough that has been rolled out, now imagine folding it in half.

Now imagine a cookie cutter cutting the folded dough into the shape of a disk.

In this case, the disk would now have a layer of air in the middle of it. The dough may not hold together well along that "fault" between the layers.

For other reasons, such as badly mixed alloy, there can be air or impurities in the middle of a blank that then becomes a planchet and is then struck into a coin.

If a planchet such as what I described is struck into a coin, there is the possibility that the obverse can split from the reverse along the "fault" in the center of the planchet.

I hope that helps.

It's basic but it gives you the idea.

Thanks,
Bill
Edited by foundinrolls
10/03/2007 4:47 pm
Bedrock of the Community
Bryan1315's Avatar
United States
14454 Posts
 Posted 10/03/2007  5:01 pm  Show Profile   Bookmark this reply Add Bryan1315 to your friends list Get a Link to this Reply
yes it helps allot, I have just never seen one split like that and figured I would ask how it happened to find out more about it. Thanks for the explanation
Valued Member
gnome's Avatar
Australia
372 Posts
 Posted 10/03/2007  8:30 pm  Show Profile   Bookmark this reply Add gnome to your friends list Get a Link to this Reply
Hope you's don't mind if I show a couple of split plancets from Oz.
The first is both halves of a 20c piece.

What-Causes-A-100%-Split-Planchet?
The next is split about 90% of the way around, another 20 c piece.

What-Causes-A-100%-Split-Planchet?
Bedrock of the Community
Bryan1315's Avatar
United States
14454 Posts
 Posted 10/03/2007  9:07 pm  Show Profile   Bookmark this reply Add Bryan1315 to your friends list Get a Link to this Reply
cool, thanks for sharing gnome
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Amazon99's Avatar
United States
2443 Posts
 Posted 10/04/2007  5:13 pm  Show Profile   Bookmark this reply Add Amazon99 to your friends list Get a Link to this Reply
Are this possible to fake? How do the grading companies know which ones are real and which ones are not?
Bedrock of the Community
Bryan1315's Avatar
United States
14454 Posts
 Posted 10/04/2007  5:57 pm  Show Profile   Bookmark this reply Add Bryan1315 to your friends list Get a Link to this Reply
I would think getting one to split down the middle like that would be allot harder to fake than some other errors. I am not saying it can't be done but I think it would be very hard to do
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foundinrolls's Avatar
United States
3507 Posts
 Posted 10/05/2007  12:48 am  Show Profile   Bookmark this reply Add foundinrolls to your friends list Get a Link to this Reply
A real fine diamond saw can do it . The key is to look for that look to the surface that is visible in the picture of the split planchet. It is usually striated and somewhat rough.
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