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<p>[QUOTE=&quot;Larry Moran, post: 542287, member: 4580&quot;]I ran into a similar problem when storing slides from professional photos I took of racing yachts, back in the early 80&#039;s.&nbsp; I also stored 2x2&#039;s containing coins in such album/notebook pages.&nbsp; By 2000, most of the pages had all stuck together, semi-permanently.&nbsp; I think it&#039;s simply from lack of ventilation and page-to-page contact.&nbsp; I think a lot of it is caused by the <u>gases</u> released through time, that do not get dispersed by ventilation.&nbsp; Coin pages were affected less than those holding slides, because those pages were not opened and ventilated.&nbsp; And I even ran my finger down inside the pockets to wipe them and air the pocket out a bit.&nbsp; VEntilation and non-contact are key, imho.</p><p><br /></p><p>It&#039;s likely that older plastic 2x2 pages will smell like that eventually.&nbsp; In 10-20 years, they will begin to stick together and feel gummy, and it won&#039;t come off.&nbsp; Most any soft vinyl like that has plasticizers, but it did not seem to affect my coins in 2x2&#039;s at all.</p><p><br /></p><p>Still, I replace the pages about every five years or so.&nbsp; I don&#039;t like the gooey stuff that would eventually form if left longer.</p><p><br /></p><p>I would not store a coin in a vinyl flip for any extended period, especially with coin in direct contact with the flip.&nbsp; I think they are fine for short term storage and shipping, and there&#039;s no question that the cushy vinyl flips have a superior &#039;feel.&#039;</p><p><br /></p><p>I&#039;m not surprised that dealers sell pages and flips with PVC in them.&nbsp; They also sell coin darkeners, brighteners, dips, and other cleaning supplies, <u>because folks buy them</u>.&nbsp; They do not care at all if you ruin your coins.&nbsp; There are plenty more where those came from, and every coin you destroy with even mild cleaning is okay with them, and makes all other uncleaned coins that much scarcer.&nbsp; If you bought the coin from them and you touch it, they will pay you less than you might otherwise expect.&nbsp; They know what they sold you. ; )</p><p><br /></p><p>Almost every method of cleaning will remove DNA from a coin. In the next 100 years, the DNA from old uncleaned coins will prove links to many ancestors.&nbsp; Coins so linked may become <u>very valuable</u>.&nbsp; Imagine me calling you and explaining that I can prove your great, great, great, great, great, great grandfather owned a particular coin that I had.&nbsp; The right, uncleaned Lincoln cent might be worth millions. </p><p><br /></p><p>That&#039;s one reason the most important aspect of coin collecting is developing the ability to distinguish cleaned coins and avoid them. The other reason is a simple matter of honesty.&nbsp; <u>Please don&#039;t tell us that nobody ever told you not to clean your coins.</u>&nbsp; Remember, you were warned, long ago.&nbsp; Perhaps I can reinforce that notion today.</p><p><br /></p><p>Lots of folks like to clean their coins and think they do no harm.&nbsp; But you see, that is just THEIR UNINFORMED OPINION.&nbsp; I am estimating that 80-90% of coins with uncleaned verdigris also bear DNA traces of users from the past.</p><p><br /></p><p>The finest coin collectors are stewards that preserve the surface condition of their coins as they receive them. </p><p><br /></p><p>It&#039;s one thing to hold a coin in your hand and think that Julius Caesar may have held it in his hand; it will be another thing to be able to prove it.&nbsp; : )</p><p><br /></p><p>Let me close this post with a couple of important terms:&nbsp; &#039;surfaces in original condition&#039; and &#039;coin has never been cleaned.&#039;&nbsp; Experts can always determine that.&nbsp; </p><p><br /></p><p>And how about, &#039;a dipped coin is a cleaned coin,&#039; and &#039;cleaned coins have altered surfaces.&#039;[/QUOTE]</p><p><br /></p>

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