What do the numbers *inside* Grizzly chew cans mean?

Some cans have/had a number behind the bar code – but some don’t. The one I have now (premium dark wintergreen pouches) doesn’t have any number under the bar code. However, inside the can (if you remove the chew) at the bottom there is a letter and some numbers. Do they have any significance?

Mine was: B 155

Possibly info about where it came from? Or from what part of the barrel? Etc.?

Any knowledge on this is welcome.

P.S.

I’m trying to quit chewing, so please, save the banter.

Comments on "What do the numbers *inside* Grizzly chew cans mean?"