Tag: Spark-Erosion

Counterfeit Detection: Spark-Erosion 1874 Three Cent Nickel Die Trial

Counterfeit Detection: Spark-Erosion 1874 Three Cent Nickel Die Trial

From the NGC Posted by Max Spiegel, NGC on 6/21/2013 Three Cent nickels were struck in 75% copper and 25% nickel with a silver-gray color, but the coin submitted to NGC appeared to be made entirely out of copper. Numismatic Conservation Services® (NCS®), a professional coin conservation company affiliated with NGC, recently received a coin […]

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