Mint-made errors are errors in a coin made by the mint during the minting process. Mint error coins can be the result of deterioration of the minting equipment, accidents or malfunctions during the minting process, or intentional interventions by mint personnel. Accidental error coins are perhaps the most numerous and in modern minting are usually very rare, making them valuable to numismatists. Intentional intervention by mint personnel does not necessarily include a deliberate attempt to create an error, but usually involves an action intended to improve quality that miscarries and creates error coins instead. Errors can occur during three different stages of the coining process: the preparing of the planchets, the preparing of the dies, and the striking of the coin. Authentic error coins must not be confused with coins that have incurred damage after being minted, known as post mint damage (PMD) or post strike damage (PSD).
Read more about Mint-made Errors: Planchet Preparation Errors, Hub and Die Errors, Strike Errors, Numismatic Value of Error Coins, Notable U.S. Coin Varieties and Errors, Terms
Famous quotes containing the word errors:
“Let us pardon him his hope of a vain apocalypse, and of a second coming in great triumph upon the clouds of heaven. Perhaps these were the errors of others rather than his own; and if it be true that he himself shared the general illusion, what matters it, since his dream rendered him strong against death, and sustained him in a struggle to which he might otherwise have been unequal?”
—Ernest Renan (1823–1892)