Are there any errors on a 2009 Penny Lincoln coin?

Although there are no exclusive errors characteristic of these 2009 coins, we can find some specimens with this error in common: We find on both the reverse of the 2009 Penny Lincoln Formative Years and the Lincoln Early Childhood a rare and valuable error, which is the double minting.

Why is the 2009 Penny Lincoln formative years a rare error?

We find on both the reverse of the 2009 Penny Lincoln Formative Years and the Lincoln Early Childhood a rare and valuable error, which is the double minting. In other designs, it may appear, but in these two it is more characteristic. This consists of striking the coin twice at the time of manufacture, which gives it a thicker or double design.

Does a 2009 Penny have a mint mark?

The US minted the 2009 penny with no mint mark and also the 2009 D penny and 2009 S proof penny. The mint mark, when present, can be found on the obverse side of the coin below the date. In addition to the standard pennies and copper proof pennies, the mint sold special-edition copper pennies with a satin finish as part of a set.