I think they meant a Pint cost you one Quid - back when the old adage was coined
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I thought that was four and twenty blackbirds?
Anyhoo I just did the experiment on a Hario digital scale. I weighed a Pyrex two cup measuring pitcher and tared the scale. Then I filled the pitcher to the one pint level. Back on the scale it read 447 grams which is close enough for 16oz or one pound.
There is a Australian meat pie called Four and Twenty. Might good eating.