1st you need a pic of the other side too. it is worth what someone is willing to pay for it. wait for the cent guys to come in a tell you what it might be worth.
Already had this on my clipboard from posting in other threads, so might as well post it here as well.
I found this one in a 2x2 about 10 years ago while flipping through a box at Baltimore. The first shows the basic color of the coin better, and the second the toning when tilted around. Have always liked it and held onto it for no real reason.
This coin was covered with black crud. I was really stunned when these colors appeared after a few minutes in an Acetone bath. Would you soak it again to remove more of the black crud or would you leave it as is?