NGC and PMG acquired KM and Pick catalog systems
Certified Collectibles Group, the parent company of certification houses NGC and PMG, has acquired ownership of the KM and Pick cataloging systems, the most important international identification standards for world coins and banknotes. KM numbers, originating from Chester Krause and Clifford Mishler's Standard Catalog of World Coins, have served for decades
NGC and PMG acquired KM and Pick catalog systems Read more »