1955 S Roosevelt Dime. Your Opinions!

I think it's mostly deterioration, it's not unusual for the peripheral to show it first and worst.

Op, Spence beat me to it.

My first thought would be gritty grease around the periphery of both sides concentrated more on the reverse. I was not aware that Die Deterioration limited itself to specific areas. So one area of the dies gives out more rapidly than other areas?
What should I reference to see similar examples?

Die flow lines are evidence of heavy die wear:

Often the fields can be polished and the die flow goes away for a time. But to remove the lines, the fields are reduced. The devices get shorter and wider as more and more is polished away. As more and more of the die is polished away, the wider the devices become:

Note the orginal design is taper at the top of the devices, narrowest deep into the die. So when the polishing polishes away more of the die, the devices are affected. Note the EPU on the reverse of your coin. It is very weak So a lot of things has happened to this coin, but its still a silver coin, so it is always worth melt.

Sorry gang, I must continue this topic.
I sent images of the first 1955 S in the pile. There are 17 more and 1 1955 D. These were all pulled from the dime tray on the same visit to the LCS for 90%. The eye appeal and condition put me right on these, nice looking junk I say. Boom in the tube. No slicks on this buy.
I take a break, decide to give these a look, and I shoot the first one out to ya'll for opinions. Well, as it turns out, every one of the remaining 1955 S examples exhibit the same conditions in different stages.
Not only that, but 3 distinctive mint mark placements,one of which,almost touches the torch.
And not only that, but 2 coins that exhibit feeder finger quite similar.
All show no extensive circulation damage. That is what drew me to them in the tray. I knew they were not proofs, but at the least,AU or better business strikes.
I can provide images if requested based on the information provided. I am not about to upload 36 images and be reprimanded for it.
It will be a meticulous task to go through them all for markers, which may or may not exist. I am sure to find some in this bunch. But, not sure about my ability to do so effectively.
Some one dumped these from the collection when spot was pushing $30. IMHO.
Now I get to look at them.
As always, look forward to your opinions and suggestions.

Thanks to you and yours without a doubt.

Imo better than a melt piece. I'd throw that in a 2x2 right away. But that's just me. :D