have a nice morgan with a light green tone, could this be PVC damage?? had the coin fo 15 years and it has not changed or could it be fake toning?? how can you tell??
There is no simple answer to your question. First you must understand what genuine toning looks like (colors, order of colors, how toning climbs from the fields to the devices, etc.). After you know what genuine toning looks like then you will better able to spot artificial toning. What you should do is look at LOTS and LOTS of coins with genuine toning (e.g., at coin shows and coin shops). You should start noticing patterns of what genuine toning looks like. If you stick with slabbed coins at first your chances of avoiding artificial toning will be increased. Another suggestion is to get a copy of Bob Campbell's DVD entitled "How To Identify Artificial Toning" (or something like that). Bob is an expert on artificial toning.
If it's PVC, the green is a very bright green and is on top of the devices (where they touched the pvc flip). If in doubt, an acetone soak will remove PVC very quickly.
