15 rare state quarter errors When compiling the list of the rarest state quarter errors, we considered factors such as mintage mistakes, market value, auction history, and collector demand.

The 1999 Georgia State Quarter Georgia state quarters from 1999 have several types of errors, according to the U.S. Coins Guide website.

A 1999 Georgia state quarter could be worth up to $10,000, according to a blog post from U.S. Coins Guide. The quarter’s high value is a result of several manufacturing errors.