Peruvian Sol Rim Marks/Damage Question

You're referring to what appear to be deep, parallel scratches on the rim, most noticeable between 2 and 5 o'clock on the shield side? Those aren't mount-marks, they're adjustment marks. They're not PMD, nor an error, merely a distinctive feature of certain coinage series. They apparently used a rough file to trim the weight of slightly overweight coin blanks down to the standard. Adjustment marks are more common on older European coins; they can also be found on some pre-1840 American coins. This Chard Coins page mentions adjustment marks on Peruvian sol coins.