Full time professional numismatist since 1974


Worked in NYC for the past 40 years, where I actively bought and sold every type of numismatic related items. Nothing is too large or small for this firm to handle. “White glove service” is the credo of Arthur Blumenthal, where all dealings are treated personally with strict client confidentiality and total privacy.

Professional Organizations:

American Numismatic Association

American Numismatic Society

Industry Council for Tangible Assets

Numismatic Guarantee Corporation-Authorized Submitter

Central States Numismatic Society

Frequent Contributor to Fox Business Channel

Blumenthal has been interviewed by CNN, USA TODAY, the New York Times, The Wall Street Journal and the New York Observer, among many publications, and has been a frequent guest on the FOX Business Channel with Stuart Varney, where he has established himself as an authoritative voice on the role of gold, U.S. numismatics and currency in world financial markets.


Blumenthal, a New York native, graduated from C.W. Post College with a B.A. in History Education, teaching school for a few years before going to work in the coin department at Gimbels in New York City. Arthur then made his way to Galerie des Monnaies of Geneva, also in New York, where he spent more than a decade as head trader. From there he spent almost 15 years with Stacks, where he focused his talents on all aspects of the coin business, from buying important collections, consigning great collections for auction and helping to develop the currently high powered bullion market.