Has Anyone Seen This Before? 2017-D Ellis Island/New Jersey Quarter.

Yes. It is Machine Doubling. Not a doubled die. On the obverse the MD is reducing the size of the raised devices. On the reverse area in the outside ring, these devices are incuse. (sunk into the coin, raised on the die) When the same movement that creates the MD on raised devices, doe just the opposite on the incuse devices. That is, it makes the devices larger because of the die movement. On these 50 States and the ATB Quarters, all the doubled dies are in the center of the designs on both sides. Earlobes and center of reverse designs. Everything beyond those areas is 99% of the time either Die Deterioration or Machine Doubling on the edges of the devices. So doubled dies are confined to the centers of the designs.

I've got nothing to add other than welcome to CCF and very nice job with your pics.

Coop check out the word LIBERTY. That word is raised and I see distinct notching of the top left corners of the letters, especially BERTY.