I'm going to be a little skeptical here. Did a quick check and while I found any number of references to the 4000 year old beer ad by guy who made that claim including in the claimant's obituary, I couldn't find a picture of it. It seems to me that if the description is anything near accurate then everyone who repeated it would want to put the picture in every article that mentioned it. Not proof, but makes me leery of repeating it.