Spectrum Group International address, phone, website, and more. Spectrum Group International’s collectibles companies in the numismatics field include Stack’s Bowers Galleries (rare coin and currency auction house), Ponterio & Associates (world and ancient coins and currency auction house), Teletrade (online coin auctions) and Spectrum Numismatics International (wholesale rare coin dealer), all based in Irvine, California. Spectrum Wine Auctions is engaged in the sale by auction of rare and fine vintage wine.
Address: 1063 McGaw Ave # 250, Irvine, CA 92614
Phone: (949) 955-1250
Fax: (949) 567-1360