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by all means these damages are most likely seen at both end of the roll
I don't believe so, I suspect most coin rolling machines crimp an end before filling a roll with coins, meaning that the first end is safe. However, if a machine leaves both ends free and only seals them after filling, this damage on both ends of a roll is totally possible
And follow-up to that, this isn't something that happens every time with coin rolling, but is also not particularly uncommon