What is “Key”, When Collecting Coins?
What is “Key”, When Collecting Coins? Key Coin is a coin that is among the toughest and Most Expensive to obtain within a series. In the Lincoln Cent series, for example, the 1909-S VDB would be considered the key, as would the 1914-D and often the 1922-Plain. Of course, a Coin may become the Most […]
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