I see no DD It's damaged. It was previously in a coin bezel. The Bezel smooshed the rim on both sides. Could alsi be a Dryer Coin. It tumbled around between the dryer barrel and dryer wall for a long time. That's why the Numbers and Letters look smooshed also Not a Mint Error
Now you know I really respect and take your advice. But I do see it being smooth. Yet way is it seem like things are raised and wide? Like if u look at the neck /collar area
Due to the fact that an "even" amount of metal has been removed, except for an exposed rim which disappeared completely, I'd say it spent a few years immersed in a mildly caustic liquid.
The washer can also do a number on an innocent coin. Ever see a Morgan with very sharp UNC features, no detectable cleaning marks, but dull and gray? Culprit may be a run or two through a lye detergent hot bath 100 or so years ago.