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<p>[QUOTE=&quot;SuperDave, post: 2639444, member: 1892&quot;]Use a ziplock-style plastic bag as opposed to a permanently-sealed vacuum bag. Food-grade examples contain no chemicals in their composition which might affect a coin, while just about any paper mailer might be assumed to have some small percentage of sulfur which could eventually color the coin. Just push all the air out of the bag before you zip it - include a dessicant packet - and you have 95% of a vacuum seal which will be sufficient for your needs.[/QUOTE]</p><p><br /></p>

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