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<p>[QUOTE=&quot;The Virginian, post: 415678, member: 15201&quot;]According to the MFG of Supersafe self sealing 2x2s, the adhesive will not migrate and does not gass off harmful fumes for coins to change color and like the cardboard is of archival quality-we shall see. I always use flat, snipe nosed pliers to swage the staple ends on the staple type 2x2s into the card board so no sharp edges protrude to potentially scratch another coin . I guess I am worried a bit since the oldtimers tell me they have had coins change color in 2x2s when stored in the boxes they came in.&nbsp; One guy refers to it as &quot;box&quot; toning. I am still wondering if this is something we need to worry about if the cardboard is still made the way it was 20-30-40-or more years ago?&nbsp; What you are saying is correct, the cellophane or mylar is the only part of the holder that contacts the coin anyway.&nbsp; One poster on another subject mentioned sealing the holders with tape from the outside edge, is that a better method still?[/QUOTE]</p><p><br /></p>

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