OK, I'm being INCREDIBLY pedantic here but, does the actual pump itself
work in imperial measures? I would dispute that.
The pump works in non-measures - the person using the pump visually puts the
drink into the glass.
"No they don't, Stephen.
Not in a UK pub (although I've seen said glass in a European (mainland)
pub."
Yes they do. Just because you say so doesn't make it true. I've seen
quite a few examples of beer glasses with 568ml stamped on them.
Stop misleading people outside the UK.
If you have proof of a One grad "1 pint" or "1/2 pint" crown stamp then you
can use your mobile (cell phone) take a quick picture then and post it here.
But you won't be able to.
As you know.