Opinions on how to grade this 53 Frankie proof

I picked up this 53 proof Frankie that shows what appears to be plastic slider marks from an album??? Nice coin that I got for next to nothing. Any opinions appreciated-good or bad.
Some coins are just plain "Interesting"
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Comments
since you got it cheap, you can't go wrong, 53 proof frankies are pricey even raw...
"Senorita HepKitty"
"I want a real cool Kitty from Hepcat City, to stay in step with me" - Bill Carter