Die flow lines from a heavily worn die. Not sure what you mean by "burnished" coins. I don't believe anything that would be described as "burnished" has ever been minted, let alone in 2017. Not really sure how burnishing even could be part of the minting process, as it's by definition a type of polishing that takes place after minting, which would be considered post mint damage.
The US Mint makes "burnished" Silver Eagles and Gold Bullion coins. All such coins come from the West Point mint, so would bear the W mint mark.
Their definition of "burnishing" includes an extra step of polishing the blanks before minting, such that it produces a more satiny, less shiny coin after being struck.
I agree with Sam that your dime shows signs of extreme die wear. Those radial flow lines mean the die was close to retirement age when this coin was made.
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