British style pub beer glass, stamped with Imperial half pint (8 oz.) mark, nonic style (cylindrical with bump, sometimes called a Tumbler, or Becker) for session drinking. 10 U.S. oz filled to top.
Serve your ale in an authentic British pub glass. Imperial pint (20 fl. oz.) stackable “Nonic” glasses. These come with the official government “weights & measures” stamp for that “air of authenticity.”