GreatCollections Auctions LLC

Bowers and Merena Auctions, founded in 1983, is a numismatic auction firm with more than 500,000 dollars in rare coin and currency sales. It has handled the Louis E. Eliasberg Sr. Collection; Harry W. Bass Jr. Collection; Garrett Collection for The Johns Hopkins University; and Norweb Collection. The firm holds leading auction prices for U.S. coins and publishes auction and mail bid sale catalogues that feature properties for sale. Its staff includes professional numismatists and auction specialists. Bowers and Merena Auctions has handled coins for several consignors, including the New York Public Library, American Numismatic Association, Connecticut Historical Society and Salvation Army.

Spectrum Group International is an auctioneer of stamps, coins, arms and armors. The company serves collectors and dealers. It is involved in the business of trading precious metals. The company conducts trading activities through A-Mark Precious Metals, which is a private seller of bullion coins and gold, silver and platinum. Spectrum Group International also manages Bowers and Merena Auctions, which was founded in 1983 and offers services to museums. The company operates Greg Martin Auctions, which specializes in the appraising and auctioning of antique firearms and edged weapons. Spectrum Group International manages companies in the United States, California and Germany.