T
. he 1968 D Lincoln Penny with Errors is a circulated copper coin with a fineness of 0.95. It features an error and is part of the Lincoln Memorial Penny series. Minted in Denver, United States, this small cent denomination coin is a unique collector's item for those interested in US coins and paper money. Its business strike type and ungraded grade add to its rarity and appeal to numismatists seeking special pieces in their collection.