NOM 1515. I've had this for some time, still sealed. Labeled lote 15, this has a 2009 marbete and came from Ebay. Opening the novelty bottle meant peeling several strips of plastic off the cap to vent the 2 plus liter bottle and opening up the "pistol" spout located on the front. I know, I know how is the Tequila? Tastes natural, has quite a bit of agave evident on the nose and palate with some natural sweetness and good mouthfeel. Finish is nothing to speak of being short with some mid tongue numbing but fades into pleasing elements. I'm surprised that what is basically a 10 year old party bottle tastes as good as it does. Some current products should be embarrassed.