2009 Kew Gardens UK 50 pence

4 сообщений
Is there any way of telling the difference between a silver proof and a cupro nickel proof as they both weigh 8g ?
I guess it would have to be a density test...or isn't there a new tool that makes a silver coin "magnetic" now?
The sound no?
L'ANRD : http://www.facebook.com/anrdgrenoble  -  http://a.n.r.d.free.fr/
Just remembered the ice cube test, thanks for your replies it help my memory recall.

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