We are dealers in mint error coins, with 19 years experience as specialists in mint error coins under the company name Sullivan Numismatics, and dealing primarily through the website www.sullivannumismatics.com. Owner Jon Sullivan is an expert in mint errors, and is the PCGS attributer and authenticator for mint error coins.

Member of ANA, CONECA, CSNS, ICTA, and FUN, and has actively participated in many other club events and numismatic functions. We are both NGC and PCGS authorized dealers.

Jon Sullivan is the owner of Sullivan Numismatics, Inc, with over 25 years collecting or dealing in mint error coins.