I'm torn on this one, and can't help but think maybe it circulated. There's too many "things" on the surfaces (to me) to have only happened inside a Mint bag. The color is a tad bothersome, as well - generally speaking, they tone from the outside in and varying areas of differing color scattered over the coin tends to be an indication of toning following a cleaning or a dip. And with the striations having scraped off some of that toning - as noted by FTB to the left of the neck - we know it's been handled since it toned.
Don't take my word as gospel, though.