US coin struck on wrong planchet – Mint Error coins Here are the most common striking and mint errors found in the coin collecting market: Off center strike There are also numismatic organizations that focus on error coin collecting. In fact, coin error collectables are generally more expensive than other collectible coins without the mint mistakes. Coins with flaws too, are not supposed to be issued for circulation and are instead recycled.īecause of this, error coins are very valuable to coin collectors. Minting defects are very rare especially with the technology of modern coinage. These flaws occur in the mint during the process of making the coins – from preparing the metal for the planchets or coin blanks to striking the design using the metal stamping tool called coin dies. These are coin errors.Įrror coins are also called striking errors or mint errors. However, there may be coin imperfections that can increase the price of your collectible coin.

Imperfections that make the coin lose its eye appeal cause the decrease in coin value. The value of the coin can be influenced by its quality or condition. Quarter dollar transitional error coin Learn the definition of a coin error and the different types of mint errors that make many collectible coins valuable to numismatists