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<p>[QUOTE=&quot;KLJ, post: 151919, member: 1910&quot;]Got a question that&#039;s been banging around in the back of my head for a while.&nbsp; I remember hearing that currency paper has basically been the same for at least a century.&nbsp; Sure, we&#039;ve added watermarks and security strips, but the paper itself is the same.&nbsp; Yet a currency pen - the type used by cashiers to check for counterfeits - that I have says it&#039;s good only after 1950.&nbsp; Why?[/QUOTE]</p><p><br /></p>

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