Numismatic Guaranty Corporation (NGC) and Professional Coin Grading Service (PCGS) are two of the world’s largest third-party coin authentication, grading and encapsulation services. Together, these services have graded and certified over 50 million coins with a total market value of over $30 billion. NGC and PCGS use similar processes to grade and certify coins, but there are some important differences between the two services that collectors should be aware of.
There are a few different world coin identification services available. The most common and well known is the World Coin Price Guide, which is published by Krause Publications. This guide provides valuations for coins from all over the world, based on recent sales information. Other world coin identification services include the Standard Catalog of World Coins and the Coin World Almanac. These services can be useful for identifying and valuing coins from countries that are not well represented in the World Coin Price Guide.
The world coins identification services industry is forecast to grow significantly in the next five years. This is due to the increasing popularity of coin collecting, as well as the growing number of retirees and baby boomers who are looking for new hobbies. The industry is expected to see strong growth in Asia and Europe, as well as in North America.