Full Version: Canada 1957 10c clamshell
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A seldom seen error. My apologies for the hastily taken pictures. (There's barely any posts today, so I thought it'd be good to start some topics)
Very interesting!!
That is a cool error. 
Really nice find. But I still prefer off center strikes though 
Jos
Jos
Neat!
What would cause an error like this?
What would cause an error like this?
QUOTE(Burks @ Oct 11 2006, 02:18 PM) [snapback]262804[/snapback]
Neat!
What would cause an error like this?
A clamshell is a scarce type of lamination error, where the laminated part is still attached rather than having peeled off. So it would be an alloy mixing issue.
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