Founded in 1988, NAC AG has been recognized as one of the world’s most important auction houses, especially when it comes to ancient and Italian coins. Originally based in Naples, the company’s founder Roberto Russo decided to relocate to the Swiss city of Zurich, which was the center of the international coin trade at the time. Additionally NAC AG has offices in London and Milan with a field office in Brussels.

Arturo and Giuliano Russo, sons of NAC’s founder Roberto Russo have almost 50 years numismatic experience between them. Arturo has been working in numismatics since his teenage years when he was mentored not only by his father but also some of the most famous names of modern numismatics including Leo Mildenberg and Silvia Hurter of Leu.

Giuliano joined NAC in 2009 straight after graduating but, just like his brother, his numismatic training started from his childhood.

Over the years Arturo and Giuliano have valued, cataloged and auctioned some of the most important collections of our time earning them the reputation they hold today as one of the most respected experts of ancient coins.

Arturo Russo, Charles Hersh, Roberto Russo

Giuliano Russo, Ted Buttrey, Claire Hallgarth

Founded in 2016,  Shanna Schmidt Numismatics Inc is specialized in ancient numismatics, with a particular focus placed on Greek coinage. Shanna Schmidt is a board governor for the American Numismatic Association (ANA) since 2019 as well as a fellow of the American Numismatic Society (ANS). Shanna also held a board position with the International Association of Professional Numismatists (IAPN) and was a full member of Professional Numismatists Guild (PNG).

Besides selling her own inventory and attending trade shows, Shanna’s representation services have provided her clients with complete access to every major auction house selling ancient coins in the U.S., Great Britain and continental Europe.

Before starting her own business, Shanna worked for her father Harlan J. Berk. Being the daughter of one of the foremost ancient coin experts, Shanna was exposed to the world of numismatics from a very young age.

Shanna Schmidt (then Berk) at the ANA in 1980