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The NGC Census reports how many examples of each issue NGC has certified by grade, which helps determine relative rarity. Census figures are often falsely inflated due to resubmissions of the same coins. NGC Coin Price Guide lists pricing data for most US coin (and some modern Chinese) issues. NGC Auction Central reports auction prices realized ...
In 2011, CAC and a group of coin dealers founded Coinplex, an online coin trading platform for dealers, in order to broaden the trading market for CAC-approved coins. The firm has since changed its name to CDN Exchange, [8] whose dealers are also able to make markets in non-CAC certified coins. CDN Exchange has over 180 member dealers posting ...
Professional Coin Grading Service (PCGS) is an American third-party coin grading, authentication, attribution, and encapsulation service founded in 1985. The intent of its seven founding dealers, including the firm's former president David Hall, was to standardize grading.
In 2007, the Professional Numismatists Guild (PNG), a US association of rare coin dealers, released the results of a survey of major coin dealers who gave their professional opinions about 11 certification services. PCGS and NGC were rated "Superior" overall, with ANACS and ICG deemed "Good".
Originally founded in June 1972 as the American Numismatic Association's authentication service, ANACS expanded into third-party coin grading in March 1979. ANACS was founded in response to the rise in counterfeit and altered coins in the numismatic marketplace. During the coin collecting boom of the 1960s, counterfeiters would alter common ...
Less than 500 have been graded and certified at MS-69 (no more than two small non-detracting contact marks or flaws, per The Spruce Crafts). ... 15 Valuable American Coins and Which US States You ...
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