The 1974 aluminum cent was a one-cent coin proposed by the United States Mint in 1973. It was composed of an alloy of aluminum and trace metals, and it was intended to replace the predominantly copper–zinc cent due to the rising costs of coin production in the traditional bronze alloy. Of the 1,571,167 coins struck in anticipation of release, none were released into circulation. To encourage congressional support for the new alloy, the Mint distributed several examples to US Congressmen. When the proposed aluminum cent was rejected, the Mint recalled and destroyed those coins. However, despite the recall, a few aluminum cents were not returned to the Mint, and those coins may remain at large. One example was donated to the Smithsonian Institution, while another was alleged to have been fou