Member Affiliations

SDL Numistmatic Properties is a certified rare coin dealer, and has been a lifetime member of many of the following organizations:

 

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.  With nearly 28,000 members, the Association serves the academic community, collectors and the general public with an interest in numismatics.

The ANA helps all people discover and explore the world of money through its vast array of programs including its education and outreach, museum, library, publications, conventions and seminars.

 

Numismatic Guarantee Corporation

When NGC was founded in 1987, it heralded the introduction of a new standard of integrity in coin grading. From the beginning NGC focused on only one objective, a standard of consistent and accurate grading. As NGC has grown to become the leader in third-party grading services, we have maintained a steadfast and uncompromising commitment to this standard. The knowledge, integrity and dedication of NGC's team of numismatic professionals ensures you a level of grading consistency unparalleled among grading services. This record of consistency, built over the years, has helped to foster greater stability throughout the rare coin marketplace.

Grading is a team effort, with at least two professional numismatists examining every coin. To maintain impartiality, NGC's coin graders cannot be involved in the commercial buying and selling of coins. Each coin is examined by one NGC coin grader at a time, who enters the coin grade into the system. The NGC grading team’s only interest is in determining accurate grades for coins. Once graded, the coin is sonically sealed in a holder made of inert material that won’t affect the encapsulated coin.

At NGC we pride ourselves in our uncompromising standards and a commitment to integrity that makes us the leader in coin certification.