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What are KM coin numbers?
Ian Russell on Sun, Dec 04, 2011 10:56:32 AM
KM coin numbers refer to the numbering system used by the Standard Catalog of World Coins, originally written by Krause and Mishler.

The catalogs are still published today, with each volume covering a century of coins, so there is a volume for each the 17th, 18th, 19th, 20th and 21st centuries.