Very, very cool coin. This is a 1804 C7 variety in manely die state 7.0. The variety is either R4 or R5 depending on the source, so either rare or very scarce. This variety comes with around 10 die states from perfect to your die state plus maybe 2 later states. So your coin is a very late die state coin. There are almost no late die state C7s in nice condition, they are generally found in lower grade with problems, your coin is pretty representative of the normal late die state C7. This variety commands a premium in general, and this die state would be of interest to serious half cent collectors. While this is an very rare die state coins, there are other die states with fewer known coins. Grade on this, I don't know sharpness of 8 maybe net to 5, i could see 10 net 6, somewhere around there. But the grade on this coin is not important, the die state and variety make this a very special coin, a point or two either way on the grade will make little difference. Just as an example, here is the davy net 4 coins in this die state: http://images.goldbergauctions.com/php/lot_auc.php?site=1&sale=65&lot=239
I just geek out reading an EAC-level evaluation of an Early Copper. Nobody sweats the details like EAC.
