http://cgi.ebay.com/1862-INDIAN-HEA...29?pt=Coins_US_Individual&hash=item1e6504ad01 Why is no one bidding?
Sort of seems like a typical ebay listing to me... old not so rare, not so nice stuff that will go for waaaay too much!
That is not a real pretty coin, maybe dug? and the corrosion will only get worse. The rim is pretty funky too. But hey, it had free shipping.
Verdegris is a corrosion product of copper, usually copper carbonate or copper chloride, sometimes copper acetate. What is seen on coins is pretty much copper carbonate as the copper acetate and copper chloride are water soluble.