I think it's counterfited !
I can't tell for certain from your pics, but your coin looks like it may be a "Texas Cent". You can do this my putting a cent between 2 pieces of leather and hitting it with a hammer. The leather distributes the force and the cent will expand while still maintaining the details. One consequence is that the copper plating comes off in the process. It's a novelty coin made from a genuine cent, not an error
BTW: I'm not seeing any DDO. Did you check to see if matches any known doubled dies on www.doubleddie.com or www.varietyvista.com? These should always be your first stop if you think you have a doubled die
That cent is a 1995D, not a '91... @Oldhoopster has a good possible explanation.... also, it could just be a fake. Cheers, RickO