Thanks to Mike for reaching out to me about sealed factory case he owns. The case is a 8 box cello case with all the standard markings but has an odd date code. 11089. Doing some Googling I found pictures of other similar cases. One has the exact same code.
These cases appear to be very late run (Spring 1989) Grocery Store Display cello cases. Supposedly inside is a Gary Carter cutout for display.
I can't explain the 5 digit codes on these but they do appear to be 1989 Fleer baseball.