'split copper plating' doubling. The striking pressure 'pulled' the copper away from the letters. Notice that the metal is flowing outward, as it should, from striking pressure. Not a DDO, I'm sorry to say.
Larry - to assist you, taking pictures that mimic what you see at Wexler's and Coppercoins sites helps your fellow enthusiasts with the diagnostic.
Depending on the condition of the coin (this one works), you can easily tell split plating because the zinc's silver color is shown instead of the copper color. 1982 - early 90's you will find a lot of split plating cents. They are a nuisance when you find a really nice conditioned coin. I loath those and plating blisters.
