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<p>[QUOTE=&quot;NumisJon, post: 1804433, member: 57668&quot;]First timer here. I have a collection of PNNA Convention Medallions going back to the first medal. Many of them are in the original snap together plastic holders with a thin layer of colored styrofoam. The Medallions are in copper, nickel, and silver. The reverses of some of them are stuck to the foam. Before I attempt to mess with them I want to ask the advise of others on how to recitfy this. The Medallions are all in uncirculated condition. I have thought about Acetone and other solvents., soaking in hot soapy water. One suggestion was to freeze them and the foam may flake off. I do not want to destroy the surface of the reverse. I am afraid of course the breakdown of the foam chemically has already destroyed the pristine surfaces. Hope some one has run into this before and has the answer.[/QUOTE]</p><p><br /></p>

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