You can check eBay for "1864 2-cent piece" and filter under "SOLD." You can then compare the photos of those sold with yours to get an approximate price. Those with a legible "WE" in the center of the ribbon usually would fetch more money.
you say this as though you just found this in the couch cushions. If I has stuff like this just “laying around”. I’d keep looking around. that being said, I’d say it’s around a $30 coin. +/- $10
The photo has been taken from an odd angle. It looks like a Good which on the Grey Sheet for $14 to $15. Expect to be paid 10 to 25 % less than that because collectors think they should able to buy them for that.