What This Coin Looks Like (Obverse, Reverse, Mint Mark Location, Special Features, etc.): The Denver Mint produced a major Overpunched Mintmark (OMM) error on the 1944 D Lincoln Wheat Cent (Penny). The best way to identify this error is to note the "D" mintmark stamped on top of a subtle "S" mint mark (D/S OMM). The location of the "S" is depicted by the arrow in the example image above where part of the "S" is best seen above the "D".
Coin Value Chart: Typical Coin Prices, Values and Worth in USD based on Grade/Condition