run: The coin is probably natural, but, it is possible that the toning was caused by outside (environmental) influences. That said, I don't doubt that the coin is original, but it does not appear to be attractive toning.
Whenever I see inflated S&H charges, I think of dishonest busines practices. Sorry, but I see no reason to trust that seller. Certainly not enough to send them money in good faith.
people add the cost of listing the item to there shipping. I dont really get to put off by the shipping that 7 bucks, as long as i get the coin/ item that week i pay for it. As for the tonning ,,somthing is shady about it. Look at his other items. He has another IKE,allong those lines as well as some morgans with strange tonning. IF you ask me id say there is some sort of deliberate environmental influences. by that i mean the lesser of AT almost NT. I know a way to do this to coins.
If it were a quarter I'd think the tarnish was nail polish used to identify a house coin used in a juke box or pool table.