I don't have this coin in hand yet, and it isn't the best of pictures, but can anyone tell if this is bronze disease or if it's just normal corrosion/oxidation? (P.S. You won't hurt my feelings if you tell me I bought a diseased coin )
It's probably just patina or crud left over that wasn't stripped when the rest of the coin was cleaned. BD usually stands out a bit more. Anyway, you won't know until you have it in-hand. If it easily flakes off and is powdery... it's BD, take action or return the coin. If not, it's fine, just monitor it over the years.
Won’t know until you get the coin.. but that little pocket at the base of her neck looks worrisome.. sort of chalky. But no sense being concerned until you get it in hand - could be nothing. Best of luck - plenty of threads here to help if you search.
I don't think you have anything to worry about. BD creates a powdery accumulation that you can easily brush off with your finger (but need to treat or it will eventually destroy your coin). The green on your coin is just the typical oxidation of copper.
As others have said, if it is powdery then you need to treat it, otherwise leave it alone. A drop of Verdicare will stabilize it. Follow the Verdicare instructions about removing loose material with the tapping technique to make sure you get it all.
