Class VII : Modified Hub Doubling

Modified hub doubling is caused when a normal master hub is used with a modified master hub to make a master die. Some part of the modified master hub was ground off to make it match the normal hub. During this process, not all the original item was completely ground off. One master hub could have the date set lower, so the date is ground off and it is hubbed with a normal master hub that has the date in the correct location. Since this occurs on the master hubs, a larger number of working dies could be affected.

What to look for :

The doubling shows as the difference between the normal hub and the modified hub.

View the photomicrograph provided by Mr. Z
to help you understand Class VII.
And below this image you go to Class VIII.

The 1970 Lincoln cent has several different doubled dies
showing Class VII doubling.

On to Class VIII