1997 Penny

This literally pretty penny ( for age and circulation) has a "letter/symbol" on the left column. It is raised and is kind of a blue color, appearing to be a different metal. The area around the column is pristine. Any ideas?

 

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It looks like a popped plating bubble and that the zinc is starting to rot underneath.

 

see if you can get a better image of lincolns ear, your looks weird

 

Pictures of the ear.

 

heres a site for you http://www.coppercoins.com/lincoln/diestate.php?date=1997&die_id=1997p1do001&die_state=mds

 

Looks like a normal ear to me.