The 1914-D Lincoln Cent is one of the key dates in the Lincoln Cent series. It has one of the lowest mintages at just about 1.2 million, making it very scarce. Compare this to the 1914 Philadelphia Lincoln Cent mintage, which is over 75 million and then you begin to get a real sense of it's true scarcity. Unfortunately, because of its scarcity and the high prices that the 1914-D Lincoln Cents command, there are many fakes or counterfeits out there. Therefore, authentication is highly recommended.