ModernCoinMart owner John Maben entered the coin business full time in 1978. He is one of the world’s premier grading and authentication authorities. His more recent experience includes over eight years at NGC as Executive Vice President and a Grading Finalizer. John was a part-time grader at PCGS in the late 1980's and has personally bought and sold well in excess of $100,000,000. in rare coins. His experienced staff is ready to help you achieve your numismatic goals, whatever they might be.
With a staff that has over 75 years of experience, John Maben Rare Coins, Inc (JMRC) trading on eBay and online as ModernCoinMart, is one of the nation's leading dealers and one of Florida's largest full service numismatic firms. We are nationally known and recognized, and purchase U.S. coins and currency nationwide. We offer appraisals at your home or bank, if warranted.
John Maben Rare Coins, Inc is an NGC, PMG, & PCGS Authorized Dealer and a CCE/FACTS Exchange Member. John Maben is a Life Member of ANA, FUN, CSNS, GSNA, and a proud member of the prestigious and highly regarded Professional Numismatists Guild (PNG).
Tom Thomas is a Professional Numismatist who has been involved in coins since 1977, and has wide experience assisting both wholesale and retail clientele. He is an integral part of the ModernCoinMart team and delighted to be your personal eBay contact.

Welcome to Modern Coin Mart, a division of John Maben Rare Coins, Inc. At MCM, we specialize in high grade Modern Coins of all types, including mint state and proof American Silver Eagles, American Gold Eagles, American Platinum Eagles, U.S. Mint Commemoratives, Buffalo Gold, First Spouse Gold and more, certified by NGC and PCGS.