Maybe originally it was like this and the top was then secured to the sealed bottom as well? I thought perhaps it was some sort of display? So that the top was taken off but the bottom was sealed so that contents could be shown but not fall out? So I put "Display Model" in the title because that's the best idea I can come up with. The bottom box has no wear at all.
The top box has some interesting scuffing? So look at the pictures carefully, and if you have any ideas to share, please let me know. Please see pictures for best description. If you have any questions at all, please let me know. I'm happy to help in any way I can.
See What Else I Have in the Same Category Items in my store are sorted by category so you can see all of the items I have of a particular kind or theme at one time. Definitely take a look before you check-out.