As the letters appear recessed and reversed, I am surmising that someone put one coin on top of the other and gave them a good bang with a hammer. The letters of the other coin made an impression. A far likelier explanation than a mint mistake.
📋 Item Submitted
1991 lincoln penny with the words "states of" stamped above america
M
Marc's Expert Appraisal
ANA-Certified Numismatist · Hudson Valley Numismatics
Similar Appraisals
1955s double die Obverse, Penny, doubling n letter's.
No such variety exists. You have a blurry photo, but it's clear enough to show you don't have a 1955 double die.…
Old pennies and a nickel from 1945
Scary bunch!
1983 penny all around rim is zink and zink over all lettering on both…
The thin copper shell is damaged and the underlying zinc is showing through. I suggest you return it to the mint and exchange…