It is called "push doubling"
http://www.error-ref.com/push-doubling/
A form o MD, Mechanical Doubling. The mintmark is normal. The inside is result of a broken mintmark punch.
to the forum!

http://www.error-ref.com/push-doubling/
A form o MD, Mechanical Doubling. The mintmark is normal. The inside is result of a broken mintmark punch.



























