I liked this one and figured it would be interesting to guess the grade. Let's see what everyone thinks.
I like the textile look to the toning. I am on the fence with the toning. Quarters have been known to go wild colors. There are a few superficial scratches/marks that I think got the pass. 67+, I think that it is market acceptable.
Nice coin with some great toning. Is that some sort of mint damage/error on the reverse at 6 o'clock, or is it an optical/photographic illusion? Looks like there's some deformity there.
Could be a slightly tapered planchet. I agree the only other thing I can think of is a dip, the area in question is definitely at terminal stage, a quick dip could have removed a bunch of heavily tarnished surface.
In hand, I don't see any damage or error on the reverse-just toning. Edit: that is also where the prong is but I am certain the photo was taken before it was placed in the holder. So what potentially looks like a small piece missing in that area is likely a photo issue (or bad cropping).
And the reveal.... Unc details cleaned ...at certain angles I see what look like hairlines from a cleaning but at other angles they are not there and the color really pops. The luster is also strong. The good thing is that this coin slipped by given the grade and was very affordable for the color.