Morgan Toning AT/NT

This may have been answered before, but finding stuff is sometimes difficult.
Normally, I purchase toned Morgans already slabbed, but I've gotten a few recently raw.
Question: Does natural toning often show up on the edge as well?
any links to NT/AT would also be appreciated!
Don't quote me on that.
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Comments
This link is a master class in what to look for with authentic toning.
http://www.jhonecash.com/research/sunnywood_classification.asp
Pictures showing an example of your question would help....I have seen tarnish on the edges of Morgans...though not often. Cheers, RickO