The 1990 penny error coins represent some of the most exciting finds for modern coin collectors. This year marked a significant transition in U.S. Mint production ...

You never know when you might come across a valuable error coin, so it helps to know what to look for. Here's a look at five ...

NEW YORK (AP) — Is it a dime? Or is it a nail? In probably one of the oddest items to come to the world of coin collecting, New York-based Heritage Auctions has announced the sale of a Roosevelt dime ...

As with just about any asset, a coin’s value is determined by its market demand. This means that coins in short supply often see higher demand — and higher values. With coins, supplies are limited ...

Minting coins isn't exactly an exact science. Even though most coins are perfect and uniform, small mistakes can result in error coins that are super valuable and ...

A full list of the top 10 “error coins” in the US has been published by SD Bullion, the precious metals dealer. The “most valuable” coin on the full sold on ...