What is this error on my 1958 Type B Reverse Quarter? Planchet error? E over T? Obverse side.

I found this searching through mixed date roll of Type B Reverse quarters. It's very proof like, but what's going on with the E?
It almost looks like an E over a T on the microscope, and I also found many 1958 Type B quarters with heavy die polish on the obverse, which makes me wonder if they were polishing this out... Or maybe more likely a planchet error?
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Looks like some type of lamination error.
Agree with OAKSTAR, though the coin is cleaned, not proof-like.
Type collector, mainly into Seated. -formerly Ownerofawheatiehorde. Good BST transactions with: mirabela, OKCC, MICHAELDIXON, Gerard
It actually looks like damage in the one photo with the metal moved due to contact damage with a sharp object. Need a better photo.
Here's a video: https://imgur.com/9PFZEzi
And an additional picture.

I think the lines are just heavy die polish, similar to these.
Type collector, mainly into Seated. -formerly Ownerofawheatiehorde. Good BST transactions with: mirabela, OKCC, MICHAELDIXON, Gerard
The second set of full coin photos is of a different coin than in the op.
My Collection of Old Holders
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I agree with lamination.
Oh well, I guess my original opinion stands true.
Type collector, mainly into Seated. -formerly Ownerofawheatiehorde. Good BST transactions with: mirabela, OKCC, MICHAELDIXON, Gerard
How can you tell it's polished? I'm new to collecting. I wouldn't have thought that until you mentioned it.
I posted the other two because I thought you may have been seeing the heavy polish lines from the mint (as shown on those other two)... Here's another picture the first one I posted. I've dipped it in acetone since.
