Just damage. PMD. Worth 1 cent. Have you looked and studied the links I provided for you? They'll help you learn what can and can't happen during the minting process. You will also learn the different types of doubling.
For Errors:
www.error-ref.com
For Doubled Dies:
www.doubleddie.com
For Errors:
www.error-ref.com
For Doubled Dies:
www.doubleddie.com
Errers and Varietys.
























