1983 Lincoln Memorial Cent Mint Error - Marjor Uniface Die Dents

Now that is different for sure.

The 1983 and 1984 reverse dies were over worked a lot those years from die polishing to remove clash marks. Each polishing thins the devices more and more as each die clashing event was removed. First time I've seen these die polishing before. But the were definitely part of the die clash making removal die events. Kind of reminds me of something acidic that they used? Note the deformed 'E' on United. That would be a marker that would Identify that die. Gives me something that could help to see if this is seen on other examples those years?
Added
Just checked the Listings from PCGS for that year. None matched their graded ones. The DDO-002 (FS-002) and 003 (FS-103) looked similar, but not a match. Thanks for posting these images. Something to look for on other examples posted.

I was looking to see if there we examples with the same altered devices that could be seen on later die states. Thus when searching on PCGS, I noticed the the listings for the DDO's that some examples were posted online on that site. Just trying to figure out if anything matched. (ran across the two FS- listings on their site)

My guess is that something splattered on the blank before it was struck-the "design" looks shock-waved. Importantly, the design is over what would be recesses in the die... it the design was due to die damage, we'd have seen more of them

Silvriosi: if that's true, then why didn't the design efface between the die-recesses at the pillars or on the top of the Memorial closest to UNITED, as it did at UNITED? It's obviously over the pillars, and it looks like there is a "Ground Zero" for the impact, as the shock-waves spread out past UNITED, etc. My guess is a drop or two of oil dripped onto the planchet, and furrowed the plating (see bubble over U). With that I hope everyone has a Good Night!

Dearborn: the reverse is the "hammer" die, and the Pillars and Memorial are recessed in the die. I have yet to see any coin exhibiting die-polishing so far into the devices. I'd love to see another. I'd love to see another one of these, too, but I suspect they don't exist. Even on my 1867 2c piece, the heavy engraver's scribbles do not alter the devices or legend

Thanks TB for the additional images of the second coin.
And thanks Mike for adding about this being die damage. Certainly what it seemed like to me.

As I understand die polishing and as OGG said, polishing won't usually affect the deepest part of the dies.