Collectible coins encompass various types, including commemorative coins, bullion, and historical pieces. Within the United States, collectible coins often feature significant events, figures, or symbols, making them popular among numismatists. The American Numismatic Association (ANA) Convention Medals are specific commemorative items issued during annual conventions, with the 1988 medal representing a notable event in numismatic history. The term "Unknown" may refer to items that lack a clear provenance, making them less desirable to collectors.

Item Denomination Series Year Mint
1988 A.N.A. Silver 97th - Cincinnati, Oh 32mm Ms Other / Varied A.N.A. Convention Medals 1988 Unknown