Alright. I feel as though I may have found a new variety for the 1899 Large Cent. I think I'll call it the... 1899 Snaz. JK :p But this one really is different, it seems to have a different second 9. I have included pictures along with enlarged date pictures. please give me your opinions. Or heck, maybe it's been found already and I'm just a dork. It is most noticeable on the bottom part of the second 9, you can tell it is thinner then all others. And where the 9 swings around (this is going to be hard to explain) to the front of the 9 it is closer to the top circle.
Snaz--interesting to see those two Large Cents. I don't have an 1899 to compare, but I assembled both dates from your coins to compare. The way the bottom loop on the 9 ends looks different to me as well.