1857 Flying Eagle Cent For Grading

looking at your new photos there is no doubt in my mind that the coin was cleaned and would receive a details designation for that. the rim hit is just an added bonus for the designation. in fact, there would be chance that it would be PMD (post mint damage). if you can return it, I would.

lesson learned either way.

shiny does not mean luster is the biggest thing you can take from this. only by looking at slabbed coins similar to yours that are in the same approximate grade will you be able to see the differences. there is no way to explain it other than it takes time looking at and handling coins. also, there are so many different ways a coin can be cleaned that it would even benefit you to look at slabbed coins with the details designation and use it as a test to see if you can determine what caused the designation.

until you get a good handle on cleaned coins, I would keep your purchases in a reasonable range and anything at these levels consider only slabbed coins.

you'll get there, but you're still a novice and spending a couple hundreds on a coin raw could end up costing an expensive lesson. did you check with the seller to see if you can return it?