Doubling??? Yes, but MD not doubled die, as others have mentioned. Thanks for posting Full Image photos, but a few would have been enough to see what you were asking. It would save you time too.
I love to collect coins, but I look for those that are very nice. I have better things to do that look at pennies to check for errors, because most of the errors that are legit, aren't worth the time it took to find it. Now, if I could find an ASE with an error, that would be worth my time. But, pennies?