Our Partners

Over the years, we've had the opportunity to connect and partner with a variety of leaders and organizations that are experts in numismatics.

Professional Coin Grading Services

Professional Coin Grading Service (PCGS) is a division of Collectors Universe, Inc. (NASDAQ: CLCT), the leader in third-party authentication and grading services for high-value collectibles including rare coins, trading cards, tickets, autographs, and memorabilia.

American Numismatic Association

The American Numismatic Association is a nonprofit educational organization dedicated to educating and encouraging people to study and collect money and related items. The Association serves the academic community, collectors and the general public with an interest in numismatics.

Numismatic Guaranty Corporation

With an unparalleled commitment to accuracy, consistency and integrity, Numismatic Guaranty Corporation® (NGC®) is the world's largest and most trusted third-party grading service for coins, tokens and medals. Since 1987, NGC has graded more than 45 million coins, each one backed by the industry-leading NGC Guarantee.

Heritage Auctions

Heritage Auctions is the largest collectibles auctioneer and third largest auction house in the world, as well as the largest auction house founded in the U.S. We are also the undisputed Internet leader in our field, with more than 1 million online bidder-members registered on This loyal and growing community of collectors is a testament to the usefulness of our website, our reputation for professional business practices and our vast expertise in the field of art and collectibles.

Certified Acceptance Corporation

Within each number of the coin grading scale is a small range of condition from low-end to high-end. Certified coins of the same grade can be of varying quality. Many of today’s collectors want coins that are solid or premium quality for their assigned grade. CAC holds coins to a higher standard so you can be confident in the value of yours. We verify previously graded coins … and award our sticker only to those coins that meet the standard for today’s selective buyer.

Women in Numismatics

Women in Numismatics is a national non-profit organization founded in 1991 as asolidus_irene1599 networking and educational forum for female numismatists. Women have much to contribute to the hobby and business of numismatics. Members include new and established collectors, dealers, and those associated with numismatic-related organizations.