About The Potomack Company Auctions, Appraisals & Estate Sales
The Potomack Company in Alexandria, VA is a premier coin dealer and auction house specializing in numismatics, rare coins, and collectible items with a distinguished 20-year history of assembling exceptional auctions. With expertise in authenticating and valuing precious metals and historic numismatic pieces, they offer comprehensive appraisal services and estate sales for collectors and institutions. Located in the heart of Northern Virginia, they buy and sell coins while celebrating America's rich collecting heritage, one lot at a time.