I have been to a lot of places that have a small tent card on the table with only the beer names and a separate beer menu with prices (and quantities we would hope). Maybe FogPub was looking at the tent card.
I was looking at the drinks menu/beer list.
By contrast, the Beagle very clearly lists by-pint prices (with tax included, even better!) on their beer list but not size options; though elsewhere in their advertising they mention 20-oz. pints I don't recall seeing what their smaller-size offerings are or what they cost.