This is Machine Doubling
. Note it only shows on the inverted image. Did you note on the normal image there is not doubling? You are seeing MD reducing the devices.
Because it is flat, the glare hides it on the normal image. You are looking in the correct area for the DDO
, but this is just Machine Doubling
. On the normal image it should appear as raised:
Note how the doubled ear is not part of the lobe, but an addition to the lobe. On your coin the reduction caused by MD, reduced the existing lobe. The extra lobe is an addition to the lobe.