Similar to my comments ATS: I think that Ike is not toned like any other naturally toned Ike I've ever seen, much less a Dansco-toned Ike. To me, it is pretty but questionable toning...Mike
Tough call leaning toward artificial. here are some examples of artificial and natural. http://www.jdsworld.net/article/coin-images2.html
I don't particularly care for toned coins myself. I thought all the 'S' mint Ikes came from the mint sealed. Which would lead me to wonder how it became toned and corroded.
I'd say AT also. But, on the bright side, it does add some character to an otherwise boring design. GUy~
I'm kinda fond of the Ike. Short production run and the last of the large dollar coins. Plus it is still fairly inexpensive to complete a nice set.
2 things make me think it is AT. Clad coins do not tone like that the devices are the same color as the fields on the letters.
One can find Mint-sealed proof sets with toned coins. The packaging is not air-tight, so the coin is exposed to the atmosphere to some degree.
Just bought the book "Coin Chemistry" by W.W.White , even the newest slabs by PCGS & NGC are'nt airtight .:smile:hatch::hammer: rzage
One clue to genuine toning is that the underlying luster will almost (stress almost) always show through the toning. When it doesn't, as with this coin, I get suspicious. One other note, clad coins can develop toning very similar to that. They just don't do it very often.