Olde Hickory Bottle Dating (Irish Walker)

Anyone know where the dates are on their older bottles, before they changed the design? I got an older vintage Irish Walker from Bestway the other day on sale, with the old design and wax, and I am curious what year it is. I would guess 2014, since I think that is the last year before they changed the bottles. I do see some engraved numbers along the bottom edge:

N26 04 13

Is that it? I am unsure due to the way it is spaced out (more so than the above text indicates). It looks different than the usual date formats I see, but that is the only thing I see anywhere on the bottle. It is engraved onto the glass, not printed. I suppose if there was a printed date, it could have worn off by now.

 

LOL

I see it now. I guess I am just blind. I totally did not catch the year being tucked into that diamond emblem. Thanks @Yaoverstand