A manufacturing error on the 1999 Georgia state quarter has increased the coin’s value, and some collectors are paying as ...

When a proof quarter from the decade shows deep mirrors, strong cameo contrast and no visible marks, it can cross into the thousands-of-dollars tier referenced in the "Plus 7 More Worth Thousands" ...

For most people, the red, white and blue design of a 1976 quarter is a nostalgic reminder of the nation's 200th birthday. For ...