Stout Decline: Guinness Slides in Popularity, Status - All About Beer
This marking on my Guinness pint glass : r/whatisthisthing
a pint of Guinness with G8 formed on the head in Blakes bar in Enniskillen, Co Fermanagh, ahead of the G8 summit in Northern Ireland. 13/06/2013 Stock Photo - Alamy
What are the numbers on Guinness glasses? : r/AskReddit
New Guinness Gravity 06/13 Beer Glass w/ Embossed Harp | #506361524