Search Ebay for the book " coin chemistry " , it practically tells you how to fake tone coins. Brent Krueger sells it. It does not tell you how to spot them tho, thats comes from experience. http://cgi.ebay.com/Coin-Chemistry-...goryZ530QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
Here is a similar one that I have,It was in the cardborad holder in the last photo, beautiful coin you have there NT all the way.............BTW mine is at NGC as we speak, I'll post the grade when it gets back.......... http://i153.photobucket.com/albums/s230/sumorada/DSC04420-1.jpg http://i153.photobucket.com/albums/s230/sumorada/DSC04422.jpg http://i153.photobucket.com/albums/s230/sumorada/DSC04441.jpg
My experience indicates "No, it won't tone appealingly." The paper had high sulfur content, so you basically went from silver to black. BUT Since my coins were stored away for a significant period of time (5-10 years), I missed any intermediate steps. Therefore I don't know what it looked like after shorter intervals of time. Since they were stored in a manner that allowed the sulfur even access to all surfaces, I don't believe the "target" pattern could have been achieved. That requires something more like album storage.
I have a couple (right now) that have been in there for a couple of years and I am still awaiting the deep toning. Adding heat helps-- put it on a radiator.