The World's Leading Collectibles Services Companies The CCG companies provide expert services that add value and liquidity to a wide variety of collectibles. Learn more
NGC Certifies Pattern Coins from the Charles E. Barber Estate Charles Barber and his father William both served as US Mint Chief Engraver. Learn more
Numismatic Conservation Services NCS provides professional conservation services for public and private collections of coins, tokens and medals. Learn more
PMG Certifies 5 Million Notes The world's leading paper money grading service achieves another major milestone. LEARN MORE
CGC Comics Finest known copy of Action Comics #1 CGC Graded 9.0 sells for record $3.2M on eBay. Learn more
Collectibles Authentication Guaranty Watch a video about the Armstrong Family Collection™, phenomenal memorabilia linked to Neil Armstrong. Learn more
Authenticated Stamp Guaranty ASG provides an accurate, consistent and impartial assessment of a stamp’s authenticity and grade. Learn more