Quote:
Not all lines are bad; knowing there is a difference and how to tell makes all the difference in the world.
And it's with
that in mind that I express doubt these lines came as a result of die polishing. They're too irregular - too curved and differently-spaced - to seem likely for die polishing. Further, the Mint normally applied this process in directions either vertical or horizontal to the orientation of the die, not so often at angles. Also, there are a sufficient number of marks on the raised portions of letters, generally oriented in the same direction, to help convince me that whatever caused these lines is post-Mint. Look carefully at how the light plays on this image, and you'll understand that the lines we see here are not nearly all of the lines on the coin.
This is, of course, no 67. Neither NGC nor PCGS have slabbed a 1928-D at that high a grade - 66 is Top Pop. With the mention of "NNC," I won't necessarily assume it's even Mint State and if it is, 65 is a stretch.