1958D penny pattern question

I am reposting to try and see if I can download my photos. I have a 1958D penny with an odd pattern. Acetone did not effect the pattern. It is on both sides, but more visual on the obverse. Curious if it is just staining of some sort, or perhaps I am just seeing things.
https://drive.google.com/file/d/1YsbQSWKudsLxzjCMdgnt8wHAbvBkIdo6/view?usp=sharing
https://drive.google.com/file/d/1Z8CihSZazsvXpNmrLMja-iMCMkd28L4N/view?usp=sharing
https://drive.google.com/file/d/1n4JuOMgCnsCZKrvaUBoKaN1ZPc0LZy78/view?usp=sharing
0
Comments
nothing special just most likely a stain
Coin sale link
https://photos.google.com/album/AF1QipM3tm5jelzXLHP1vA6Eeds5Y_oo0eQ33ToWTcs5
Thank you Silverpop!
Yes, I agree... that is staining... could be from time in a purse, or storage container... No way to be certain.... But, no numismatic premium since it is PMD (Post Mint Damage). Cheers, RickO
Thank you Ricko.