Spectrum Group International was founded by Greg Manning. Manning began collecting stamps at age 7 and at 25 opened an office to market stamps.
Spectrum Group is an auction house that operates internationally through two main segments: Trading and Collectibles.
Today the company serves both collectors and dealers in North America, Europe, and Asia through its companies: Stack’s Bowers Galleries, a rare coin and currency auction house, Ponterio & Associates, a world and ancient coin and currency auction house, Teletrade, which handles online auctions, and Spectrum Numismatics International, a wholesale rare coin dealer.
Spectrum Group International is traded publicly under the symbol SPGZ, is #353 in the Fortune 500, has 139 employees, and had $7.05 billion in revenue in 2013.
Spectrum Group International
Spectrum Group International was founded by Greg Manning. Manning began collecting stamps at age 7 and at 25 opened an office to market stamps.
Spectrum Group is an auction house that operates internationally through two main segments: Trading and Collectibles.
Today the company serves both collectors and dealers in North America, Europe, and Asia through its companies: Stack’s Bowers Galleries, a rare coin and currency auction house, Ponterio & Associates, a world and ancient coin and currency auction house, Teletrade, which handles online auctions, and Spectrum Numismatics International, a wholesale rare coin dealer.
History
Spectrum Group International is traded publicly under the symbol SPGZ, is #353 in the Fortune 500, has 139 employees, and had $7.05 billion in revenue in 2013.
