Unc Coins Dull On One Side - Coin Community Forum

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Author	Replies: 3 / Views: 1,636
pennyhoarder New Member Canada 16 Posts	Posted 01/04/2015 5:34 pm I recently acquired a collection that included a couple of old world coin books. There are some really nice pieces in there, mostly UNC coins, and the front has all the original luster but the back side which was sitting against cardboard paper for the last 50 years has turned completely dull with no shine. And does this lower the value of the coins? Is there any way to restore the shine? * Moved by Staff to a more appropriate forum. * Report this Post to the Staff

Altaira Pillar of the Community Canada 2517 Posts	Posted 01/04/2015 6:14 pm They have reacted to the chemicals in the paper and whatever else packaging under it. I don't think you can remove it unless it's silver, by using a thiourea dip (leave the dipping to the experts!). It depends, but simple dull toning lowers the eye appeal of the coin in general. Turn them around a bit in the light - some toning you can't see unless light is hitting it an some angle. Report this Post to the Staff
Sap Moderator Australia 16810 Posts	Posted 01/04/2015 6:56 pm Yes, it lowers their value; collectors pay more for lustrous coins. No, there's no way to make them shiny again. Not without turning your coins into "cleaned coins" that collectors will pay even less money for. Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis Report this Post to the Staff
pennyhoarder New Member Canada 16 Posts	Posted 01/04/2015 8:34 pm Thanks guys, well that sucks. Report this Post to the Staff
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