I think I found a die chip error on this 1983 coin. It is on the 8 in the 1983 date. Also, on the reverse, I noticed a line (die break?) that extends from the bottom of the Lincoln Memorial on the righthand side to the edge of the coin near the initials FG.
I hope these pictures are good enough to see the details I'm referring to. I am still learning this computer system, and am having issues with my photos. Computers now days frustrate me to no end, but I am determined.