To my eye, this is about as nice as 67's get. Super strike, super luster, and not significant nick. It is bright amber with only a mild blotch in color. It is solidly a 67.
I believe it is die fatigue. Someone will pipe in if I am wrong. But it is pretty much all over the coin, just a little more pronounced and photogenic at that point.
Die wear, this is a LDS coin, you see it around all the obverse devices. Notice the halo effect around the protrait. Always bump these up a grade from what you may think, the late state imparts a very lusterous surface. It really makes a nickel glow!