1925 Peace Dollar. Origin Of Squiggle Mark?

Scribbling die scratches as they are known .
Comes from excessive die polishing .
Check VAM world and match it up .
Nice coin you have there !

Looks like a reed hit to me as well.

Thank you all for the help!
I am so grateful to have this resource!
You were dead on Pacificoin. It turned out it is a VAM. Shortened rays due to die over polishing.

As said, I think the lines on reverse are die file lines to get rid of a die clash. Here is pic from vamworld. This pic may not match the OP coin, there are several listed with die file lines.

If I'm following the comments in the thread I started all these wonderfully helpful comments relate to the squiggle in the image I posted.

As Pacificoin explained, the extended squiggle of metal in the image is a scribbling die scratch. It's caused, according to our resident expert, by over polishing the die to correct things like die clashes.

Die file lines also arise from attempts to correct similar die issues while a die is in use.

Most relevantly to me, scribbling die scratches and die file lines point the way to finding interesting clashes and other die varieties that otherwise might be overlooked.

After understanding this I was able to see the VAM on the coin in the image that I hadn't noticed.

In regard to the difference between scribbling die scratches and reeded edge impacts, just think about the difference in what causes them.
Reeded edge impacts come from a circular body impacting a flat surface.
They can only be so long, will indent the surface, and be unique to the specific coin they occur on.
A scribbling die scratch is an impression in the die. It will only be raised metal, no indent, and can be small or quite extended, like the one in the image. It will also appear on every coin struck after the overpolishing has occurred, unless the die anomaly is later corrected.
Also, while both squiggly, the morphology of the squiggling is somewhat distinct.

Very interesting.

Excellent!

I had to read this post like 5 times to understand what the heck was going on.
So to confirm, between the E & P is just a rim hit? And the die scratches are just called die scratches?

Multi directional die scratches in an similar area would be a squiggle die scratch then?

Tanman2001 thanks for the attribution, that looks spot on. That's a VAM I'm always keeping my eye out for as it's easy to spot with no loupe.