Just because it's still in the Mint cello doesn't mean it can't take a hit from the reeding of another coin. In this case, it looks like it took a couple of nasty ones from another Ike which very well could have also still been in the cello. It may even have been done intentionally. Take a close look at "ONE DOLLAR". Chris
Ouch ! Is the cello damaged? Hard to imagine that long mark extending deep into the rim occurring after packaging without in some way defiling the cello.
Both obverse and reverse are strike throughs of something. Possibly detach reeding. Shoot Mike Diamond a PM for some opinions other than 'hits from other coins which it does not appear to be from where I'm sitting.
No. My nose is on the monitor. I sent Mike Diamond an email asking him to look at this thread though. I have a "reasonable" grasp of error coins and how some of them are made and the reverse of this coin is definitely a strike through but the obverse has me puzzled. My first thought was the packaging sealer since we've all seen those coins in the past but there are no correlating marks on the reverse. There is not "damage to the cello from what I can see which to me says striking error.
The reverse definitely looks like it has a "struck through reeding" error. This reeding usually represents shorn-off fins or bits of metal scraped off during a "forced broadstrike". Since the reverse impression looks like a legitimate error, there's a good possibility that the obverse also has a "struck through reeding" error at the northern perimeter.