There are a variety of errors that can occur when striking a coin. Two of the most popular types of error coins to collect are Off Center and Broadstrike coins. An Off Center Coin occurs when a planchet is improperly fed into the collar and a Broadstrike Coin occurs when the collar of a coin is improperly sized. Coins that exhibit errors like these are generally caught by the mint and never enter circulation, but every once in a while some error coins manage to be released. This set of error coins includes one Off Center example and one Broadstrike example of a Lincoln Cent, a Jefferson Nickel, and a Roosevelt Dime as well as one Off Center example of a Washington Quarter. All seven of these error coins, which have managed to escape the U.S. Mint, come graded Brilliant Uncirculated by NGC.