Gray, of North Wildwood, N.J., had worked at the U.S. Mint since 1996. In a federal court in Camden, N.J., he admitted taking $1 presidential coins that were missing edge lettering, knowing they would be considered more valuable to coin collectors because they were considered "mint errors." He mailed them from New Jersey.
He was freed on $50,000 bail. He is scheduled to be sentenced on Dec. 20.