The 1948 Denver mint mark one-cent coin, commonly referred to as a penny, is part of the Lincoln cent series produced by the United States Mint. Coins from this series were introduced in 1909 and feature the portrait of President Abraham Lincoln. The Denver mint produced a limited number of these coins, making the 1948-D variety relatively sought after among collectors. The value of a 1948-D cent can vary based on its condition, with those in higher grades fetching premium prices in the collectible market. Collectors often seek out rolls or bags of these coins for both investment and numismatic purposes.