I was going through the extra coins I have, and noticed something on the 1988 D. One of the ten I had in the jar, the "D" appears to be farther away from the date. I looked at the rest of them and some actually have the "D" centered between the 9 and 8, and some are more centered under just the 8 number. I am fairly new to collecting coins and am not sure if this would be considered a variation and should have it's own KM, or extra note after it, or if this is a very common thing with almost any year. Anyone know? Thanks!