That is Machine Doubling. The die was normal, but the machine altered the devices after the strike. On a doubled die the devices are enlarged on the die. This Machine Doubling is noted by reduction of the normal devices. Flat shelf like:

A real DDO would look like this:


Click to enlarge the images

A real DDO would look like this:


Click to enlarge the images
Edited by coop
01/02/2020 5:32 pm
01/02/2020 5:32 pm























