The Numismatic Guaranty Company (NGC) is a leading third-party grading service for coins, tokens, and medals. Established in 1987, NGC provides authentication, grading, and encapsulation services, ensuring the quality and authenticity of numismatic items. Their rigorous grading standards and expert evaluations help maintain the integrity of the coin market by offering collectors and dealers a reliable and unbiased assessment of a coin’s condition and value. NGC-certified coins are highly regarde

NGC revolutionized the coin market by providing an expert, impartial and trusted assessment of a coin’s authenticity and grade. | NGC - Numismatic Guaranty Company

More than 150 NGC-certified rarities from the Geoffrey Cope Collection are featured in an exceptional auction presented by Numismatica Genevensis SA, Numismatica Ars Classica NAC AG and Classical Numismatic Group. Among the highlights is an England 1663 Petition Crown graded NGC MS 63 , considered one of the great treasures of English numismatics. Learn more about this outstanding auction at NGCcoin.com/news/article/12833 | NGC - Numismatic Guaranty Company