Sweet find! That's a braided hair large cent. I think they also made 1/2 cents that year as well...the back will say either "half cent" or "one cent" in the middle of the coin. Best way to clean old copper coins is to rub the dirt off with a toothpick. Takes some work, but it will get the dirt off and won't damage the coin. The side of the coin you posted looks to be in pretty good shape, hopefully you'll be able to get the back of it cleaned enough to ID it.