Mark Ferguson Rare Coins & Precious Metals LLC

Mark Ferguson Rare Coins & Precious Metals LLC is your trusted Oshkosh coin dealer specializing in numismatics and rare coin authentication. We provide expert grading, valuation, and certification services to protect both buyers and sellers in the numismatic community. Whether you're looking to buy, sell, or have coins professionally authenticated, our knowledgeable team is committed to delivering accurate, fair, and consistent service for all your precious metals and coin collecting needs.