For me it looks like neither. Instead it looks like the paper was scanned in one of this plastic sleeves you can put documents in if you don't want to punch ho

For me it looks like neither. Instead it looks like the paper was scanned in one of this plastic sleeves you can put documents in if you don't want to punch holes in them or give them additional protection. Older versions of this sleeves tend to not be perfectly clear but instead have a pattern similar to that you can seen in the scan. Through in the end it's just speculation.