Sarasota's Numismatic Guaranty Co. graded coins that sold at auction for nearly $9M

A collection of hundreds of coins certified by Sarasota-based Numismatic Guaranty Co. sold for about $8.9 million at an auction hosted by the Swiss auction house SINCONA.

Sarasota's Numismatic Guaranty Co. graded coins that sold at auction for nearly $9M

Sarasota's Numismatic Guaranty Co. graded coins that sold at auction for nearly $9M

Sarasota's Numismatic Guaranty Co. graded coins that sold at

Sarasota's Numismatic Guaranty Co. graded coins that sold at auction for nearly $9M

Sarasota's Numismatic Guaranty Co. graded coins that sold at auction for nearly $9M