I used to search nickels a lot, and I have never noticed one like this. Notice the small "bar" on the underside of the top of the center door. Looking at it under a loupe, it appears to strongly mimick the doubled column Lincoln cents, and the more recent Mt. Rushmore & Homestead quarters. Considering that the majority of doubled dies produced by the single squeeze hubbing process are minor and centrally located, do you think there is a decent chance this could be a DDR?
UPDATE: I sent an email with images to James Wiles and Brian Ribar. I haven't heard from Ribar yet, but Dr. Wiles replied, "Jay: It certainly looks good. I would love to see it. Thanks, James Wiles". So, if everything checks out in hand, it may get listed at variety vista.
UPDATE! I got an email from James Wiles a few minutes ago. He said, "The nickel is a new listing. DDR-001, 1-R-VIII, stage A, EDS. Congratulations!" I'm very happy with this! This is the first doubled die I've ever sent for a "first reported" find!
1st Good find. 2011 Philadelphia also had a DDR that's was about same. He may still have a few rolls stashed??