Mint Error 1957 D Lincoln wheat cent

this is a 1957-D Lincoln Wheat Penny.

Coin Details

Series: Lincoln Wheat Cent.

Year: 1957.

Mint Mark: "D" for the Denver Mint.

Composition: Primarily copper.

The partially missing date on your 1957-D Lincoln Wheat Penny is likely due to a minting error known as a Struck-Through Grease or Filled Die error.

How the Error Occurs

Debris Buildup: During the high-speed minting process, a mixture of heavy grease, oil, and metal dust can build up in the recessed areas of the die (the "stamps" that press the design into the coin).

Design Obstruction: When these recesses (like the numbers in the date) become filled with this debris, they cannot fully press into the coin blank.

Result: This leads to certain details appearing weak, "mushed," or completely missing altogether, which is a common occurrence on Lincoln cents from that era.