Numismatic Guaranty Corporation® (NGC®) and Paper Money Guaranty® (PMG®) have been named the Official Grading Services of the Macau Numismatic Society (MNS). Numismatic Conservation Services® (NCS®), an affiliate of NGC and PMG, has been named the Official Conservation Service of the MNS. The MNS was established in 1988 to serve the coin and paper money […]
The post NGC, NCS, PMG Named Official Grading and Conservation Services of the Macau Numismatic Society appeared first on CoinWeek.