They look like enhanced microcuts. Yeah, I don't know what that means either. Maybe something came in contact with your cigar some time during it's life and left those marks which were enhanced by the contraction of freezing cold. Probably caused by something happening to the tobacco before it was rolled.

We could make up a story about what happened. I imagine Jonathan Drew walking through some aromatic warehouse. He's not exactly sure what the hell he's doing, but he wants to look real cool. He's got this little tool that he invented that he uses to snatch up a tobacco leave, smell it and test it's structure. He does this throughout the warehouse. Suddenly, he sticks a leave that is destined for greatness. Little did Jon know that somewhere a Bow-Hunting Hoosier would put this leave in his freezer and discover the marks left by his passing. If he knew the story of how that leave would be torn apart and put into a pipe, I wonder what he would think....probably think, "man, this is a crazy world where anything could happen!"