What do the numbers stamped on the heel of hobbleskirt Cokes represent?

[ncbred77]

I've never collected hobbleskirt cokes, mainly SS. But the other day I went creek walking and found a Thanksgiving Coca Cola from Wilson, NC and noticed the numbers stamped into the heel. Just wondering what they mean.

Thats the only good thing about the drought around here. Alot of the creeks are drying up and exposing some older bottles.

 

[whiskeyman]

DUSTIN...[/align]You'll find those numbers & letters on most later containers...[/align] [/align]I've noticed D.O.C. followed by several numbers on the heel edge of beer & soda bottles..( is this what you mean?)....must be a glass manufacturer's code or method of dating. I have no idea what the D.O.C. means...[/align]