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<p>[QUOTE=&quot;kanga, post: 890474, member: 9270&quot;]First, there&#039;s no such thing as a holder that will protect for 50 years or beyond.</p><p>But I do believe there&#039;s at least one that would probably come close.</p><p>&nbsp;</p><p>Problem #1 - What was the coin like BEFORE it was put into a holder?</p><p>LOTS of coins have early stage problems that just haven&#039;t manifested themselves yet.</p><p>A surface that has been touched by a finger comes to mind. It may not show up for a year or so.</p><p>IMO that&#039;s how a coin in a TPG slab <u>could</u> get a fingerprint. It was there before slabbing, just not visible yet.</p><p>&nbsp;</p><p>Problems #2 - Storage conditions. Variations in temperature are bad BUT high humidity is the REAL problem.</p><p>&nbsp;</p><p>- 2x2&#039;s properly sealed should be good for 5-10 years. My suggestion would be to reholder them evey 5 years.</p><p>- I&#039;ve never been comfortable with flips. Too open.</p><p>- Slabs are good but not totally sealed.</p><p>- Eagle Coin Holders (mentioned in another thread) are at least as good as 2x2&#039;s and probably better.</p><p>- The closest to permanent protection that I can imagine is Capital Plastics holders. If the coin is problem-free when put into one of these it will stay problem-free for a long while. Drawbacks are expense and storage.[/QUOTE]</p><p><br /></p>

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