Also look at the base of the 1 in 1982. In the 82 no FG variety the base of the 1 is cut off and not as prominent as on other dates. This is in the cherry pickers guide. I have sold a few for between 5 and 10 bucks so it is at least worth a 40%'er. I have also found a 74 D, 79 P and a few other dates. There is even a lincoln cent with no FG on the back either.