NGC and PMG Attending Central States Numismatic Convention The following is a press release from NGC and PNG, announcing they will both be accepting submissions on site at the Central States Convention. The Central States Convention will be held in Schaumburg, IL, just outside of Chicago, April 22-26, 2025. Numismatic Guaranty Company® (NGC®) and Paper Money Guaranty® (PMG®) will be accepting regular submissions for all service levels at the 

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