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<p>[QUOTE=&quot;desertgem, post: 831429, member: 15199&quot;]Once made a mistake and used acetone on an old engraved stamp, and it removed some of the ink. The photos of after look less deep than the before, or is that just the removal of the oil?</p><p><br /></p><p>I use hexane on stamps and stock certificates if absolutely necessary. It is also used as a watermark detection fluid.</p><p><br /></p><p>Rickie, is this true also for a bill that has been steam pressed? I realize dry heat will set the fibers, but wondered if moist heat would also?</p><p><br /></p><p>Jim[/QUOTE]</p><p><br /></p>

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