What coins cannot be encapsulated by NGC?
A. NGC does not encapsulate coins that are not genuine, are of questionable authenticity, or that have an added or removed mintmark or altered date. Additionally, NGC does not encapsulate coins with surface residue or PVC. Coins with these latter surface conditions usually can be professionally conserved and then encapsulated by NGC. This conservation service is performed by Numismatic Conservation Services (NCS).