Discussion in 'World Coins' started by Bob Evancho, Oct 8, 2017.
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ANA started certifying in 1972 but I checked and the ANACS database doesn't go back to my certificate number. I'll probably have to send the coin in to have it certified. I have to finish conserving it first. I have the typed certificate but it is not a photo certificate like I have for my 1943 nickel on a zinc coated penny planchet.
Good question. I followed instructions I was given and placed the coin in the bottom of a beaker, then filled with acetone and swished the acetone without moving the coin. I did this 5 times with fresh acetone, let it air dry each time and removed all the PVC oils. I studied this under a microscope and noticed the discoloration to the copper in the sterling silver. There is no way to resolve that issue according to a chemical engineer friend of mine. There is no further PVC on the coin but a slight discoloration. I don't think NGC or PCGS could do better to bring the silver color back. It's still a nice coin and will be used for educational purposes. And still a rare coin.
Haha you’d be surprised. I have a 1938 crown in probably VG condition.
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