When you go to the pub and have a pint, there is a logo at the top of the glass. Looks like some kinda coat of arms or something. I guess that just means that its defo a pint sized glass. But there is a number under the logo, and its different on different glasses. Two glasses of the same style can have different numbers too. I was just wondering if anyone knew what these numbers referred to, cause our 'sad' debates in the pub have come to no conclusion!!!