Hello all, this is my first question asked, so please, bare with me&

I found a 73 d Kennedy ddo-001 (image 1) and it has a obverse die clash. I've found similar photos of it, here, in the CCF with the clash on the bridge of the nose (image 2). What I haven't been able to find here or else is the clash that's on the back of Kennedy's neck (image 3). Looks like the ridge of a dinosaurs back. I think it's the tips of the eagle's wing feathers.
Can anyone shed a little more light on this die clash variation?
Pettibone/20210302_download.jpg[/img]
[img]uploaded/Arnold Pettibone/20210302_download--1-.jpg[/img]
[img]uploaded/Arnold Pettibone/20210302_download--2-.jpg[/img]