Need a closeup to fully confirm, but this appears to be Plate Disturbance Doubling. If a foreign object(crud, air, moisture) was trapped between the copper plating and zinc core, upon stamping could have produced the "sympathetic" reaction. It isn't a hub doubled event nor is it MD, more evidence would be seen elsewhere on the devices.
Darn, beat again! Too wordy...
Darn, beat again! Too wordy...
Edited by Crazyb0
12/26/2017 1:51 pm
12/26/2017 1:51 pm
























