1799 Large Cent, an NGC misattribution
I'm sure this goes without saying, especially for the educated people of EAC, but definitely exercise caution when purchasing a low grade 1799 Cent in a slab. Here is an example I recently found listed in a dealer's online inventory for almost $4K...
Pretty obviously a 1798 S-166. Not sure if this was an actual misattribution or just a typo, but it's still a bit disconcerting to see this kind of oversight on a high value coin.
P.S. I did contact the dealer and inform them of the mistake and asked that the coin be taken down.