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<p>[QUOTE=&quot;mirana, post: 9582881, member: 79705&quot;]Tough to tell in photos, but if it is monochrome then it is ink and ink wash most likely.</p><p><br /></p><p>I would also open it. It looks like a composite paper board for backing and those are never acid free and would need to come off anyway.[/QUOTE]</p><p><br /></p>

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